Home / 747,736.83-1,031,871.56-408,205.08

Finding the Fourth Proportional to 747,736.83, 1,031,871.56 and 408,205.08

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Solution

The fourth proportional to 747,736.83, 1,031,871.56 and 408,205.08 is: 563,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,736.83 : 1,031,871.56 = 408,205.08 : x
  2. Step 2: Convert to fraction form
    747,736.83/1,031,871.56 = 408,205.08/x
  3. Step 3: Cross multiply
    747,736.83x = 1,031,871.56 × 408,205.08
  4. Step 4: Simplify right side
    747,736.83x = 421,215,210,658.50
  5. Step 5: Solve for x
    x = 421,215,210,658.50/747,736.83
  6. Step 6: Final answer
    x = 563,320.13

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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.