Home / 529,210.20-730,307.16-287,490.84

Finding the Fourth Proportional to 529,210.20, 730,307.16 and 287,490.84

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Solution

The fourth proportional to 529,210.20, 730,307.16 and 287,490.84 is: 396,735.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,210.20 : 730,307.16 = 287,490.84 : x
  2. Step 2: Convert to fraction form
    529,210.20/730,307.16 = 287,490.84/x
  3. Step 3: Cross multiply
    529,210.20x = 730,307.16 × 287,490.84
  4. Step 4: Simplify right side
    529,210.20x = 209,956,618,886.41
  5. Step 5: Solve for x
    x = 209,956,618,886.41/529,210.20
  6. Step 6: Final answer
    x = 396,735.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.