Home / 917,557.02-1,376,335.32-286,524.90

Finding the Fourth Proportional to 917,557.02, 1,376,335.32 and 286,524.90

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Solution

The fourth proportional to 917,557.02, 1,376,335.32 and 286,524.90 is: 429,787.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,557.02 : 1,376,335.32 = 286,524.90 : x
  2. Step 2: Convert to fraction form
    917,557.02/1,376,335.32 = 286,524.90/x
  3. Step 3: Cross multiply
    917,557.02x = 1,376,335.32 × 286,524.90
  4. Step 4: Simplify right side
    917,557.02x = 394,354,339,929.47
  5. Step 5: Solve for x
    x = 394,354,339,929.47/917,557.02
  6. Step 6: Final answer
    x = 429,787.28

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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.