Home / 1,037,989.80-1,556,693.10-328,235.40

Finding the Fourth Proportional to 1,037,989.80, 1,556,693.10 and 328,235.40

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Solution

The fourth proportional to 1,037,989.80, 1,556,693.10 and 328,235.40 is: 492,260.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037,989.80 : 1,556,693.10 = 328,235.40 : x
  2. Step 2: Convert to fraction form
    1,037,989.80/1,556,693.10 = 328,235.40/x
  3. Step 3: Cross multiply
    1,037,989.80x = 1,556,693.10 × 328,235.40
  4. Step 4: Simplify right side
    1,037,989.80x = 510,961,782,355.74
  5. Step 5: Solve for x
    x = 510,961,782,355.74/1,037,989.80
  6. Step 6: Final answer
    x = 492,260.89

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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.