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Finding the Fourth Proportional to 688,697.75, 950,226.39 and 402,053.12

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Solution

The fourth proportional to 688,697.75, 950,226.39 and 402,053.12 is: 554,730.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,697.75 : 950,226.39 = 402,053.12 : x
  2. Step 2: Convert to fraction form
    688,697.75/950,226.39 = 402,053.12/x
  3. Step 3: Cross multiply
    688,697.75x = 950,226.39 × 402,053.12
  4. Step 4: Simplify right side
    688,697.75x = 382,041,484,805.84
  5. Step 5: Solve for x
    x = 382,041,484,805.84/688,697.75
  6. Step 6: Final answer
    x = 554,730.26

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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.