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Finding the Fourth Proportional to 688,694.75, 950,222.25 and 402,050.12

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Solution

The fourth proportional to 688,694.75, 950,222.25 and 402,050.12 is: 554,726.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,694.75 : 950,222.25 = 402,050.12 : x
  2. Step 2: Convert to fraction form
    688,694.75/950,222.25 = 402,050.12/x
  3. Step 3: Cross multiply
    688,694.75x = 950,222.25 × 402,050.12
  4. Step 4: Simplify right side
    688,694.75x = 382,036,969,639.17
  5. Step 5: Solve for x
    x = 382,036,969,639.17/688,694.75
  6. Step 6: Final answer
    x = 554,726.12

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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.