Home / 869,247.90-1,303,871.85-308,339.10

Finding the Fourth Proportional to 869,247.90, 1,303,871.85 and 308,339.10

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Solution

The fourth proportional to 869,247.90, 1,303,871.85 and 308,339.10 is: 462,508.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,247.90 : 1,303,871.85 = 308,339.10 : x
  2. Step 2: Convert to fraction form
    869,247.90/1,303,871.85 = 308,339.10/x
  3. Step 3: Cross multiply
    869,247.90x = 1,303,871.85 × 308,339.10
  4. Step 4: Simplify right side
    869,247.90x = 402,034,672,744.34
  5. Step 5: Solve for x
    x = 402,034,672,744.34/869,247.90
  6. Step 6: Final answer
    x = 462,508.65

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.