Home / 688,908.70-1,033,363.05-314,931.70

Finding the Fourth Proportional to 688,908.70, 1,033,363.05 and 314,931.70

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Solution

The fourth proportional to 688,908.70, 1,033,363.05 and 314,931.70 is: 472,397.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,908.70 : 1,033,363.05 = 314,931.70 : x
  2. Step 2: Convert to fraction form
    688,908.70/1,033,363.05 = 314,931.70/x
  3. Step 3: Cross multiply
    688,908.70x = 1,033,363.05 × 314,931.70
  4. Step 4: Simplify right side
    688,908.70x = 325,438,782,053.69
  5. Step 5: Solve for x
    x = 325,438,782,053.69/688,908.70
  6. Step 6: Final answer
    x = 472,397.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.