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Finding the Fourth Proportional to 688,693.25, 950,220.18 and 402,048.62

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Solution

The fourth proportional to 688,693.25, 950,220.18 and 402,048.62 is: 554,724.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,693.25 : 950,220.18 = 402,048.62 : x
  2. Step 2: Convert to fraction form
    688,693.25/950,220.18 = 402,048.62/x
  3. Step 3: Cross multiply
    688,693.25x = 950,220.18 × 402,048.62
  4. Step 4: Simplify right side
    688,693.25x = 382,034,712,065.15
  5. Step 5: Solve for x
    x = 382,034,712,065.15/688,693.25
  6. Step 6: Final answer
    x = 554,724.05

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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.