Home / 747,731.39-1,031,864.06-408,199.64

Finding the Fourth Proportional to 747,731.39, 1,031,864.06 and 408,199.64

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Solution

The fourth proportional to 747,731.39, 1,031,864.06 and 408,199.64 is: 563,312.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,731.39 : 1,031,864.06 = 408,199.64 : x
  2. Step 2: Convert to fraction form
    747,731.39/1,031,864.06 = 408,199.64/x
  3. Step 3: Cross multiply
    747,731.39x = 1,031,864.06 × 408,199.64
  4. Step 4: Simplify right side
    747,731.39x = 421,206,533,682.12
  5. Step 5: Solve for x
    x = 421,206,533,682.12/747,731.39
  6. Step 6: Final answer
    x = 563,312.63

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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.