Home / 869,355.15-1,303,112.36-292,429.20

Finding the Fourth Proportional to 869,355.15, 1,303,112.36 and 292,429.20

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Solution

The fourth proportional to 869,355.15, 1,303,112.36 and 292,429.20 is: 438,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,355.15 : 1,303,112.36 = 292,429.20 : x
  2. Step 2: Convert to fraction form
    869,355.15/1,303,112.36 = 292,429.20/x
  3. Step 3: Cross multiply
    869,355.15x = 1,303,112.36 × 292,429.20
  4. Step 4: Simplify right side
    869,355.15x = 381,068,103,482.77
  5. Step 5: Solve for x
    x = 381,068,103,482.77/869,355.15
  6. Step 6: Final answer
    x = 438,334.21

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Double scale
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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.