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Finding the Fourth Proportional to 513,995.52, 767,228.80 and 453,395.20

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Solution

The fourth proportional to 513,995.52, 767,228.80 and 453,395.20 is: 676,772.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,995.52 : 767,228.80 = 453,395.20 : x
  2. Step 2: Convert to fraction form
    513,995.52/767,228.80 = 453,395.20/x
  3. Step 3: Cross multiply
    513,995.52x = 767,228.80 × 453,395.20
  4. Step 4: Simplify right side
    513,995.52x = 347,857,855,221.76
  5. Step 5: Solve for x
    x = 347,857,855,221.76/513,995.52
  6. Step 6: Final answer
    x = 676,772.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.