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Finding the Fourth Proportional to 688,764.60, 950,494.32 and 382,831.32

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Solution

The fourth proportional to 688,764.60, 950,494.32 and 382,831.32 is: 528,306.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,764.60 : 950,494.32 = 382,831.32 : x
  2. Step 2: Convert to fraction form
    688,764.60/950,494.32 = 382,831.32/x
  3. Step 3: Cross multiply
    688,764.60x = 950,494.32 × 382,831.32
  4. Step 4: Simplify right side
    688,764.60x = 363,878,995,178.10
  5. Step 5: Solve for x
    x = 363,878,995,178.10/688,764.60
  6. Step 6: Final answer
    x = 528,306.76

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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.