Home / 717,454.80-990,094.32-395,166.06

Finding the Fourth Proportional to 717,454.80, 990,094.32 and 395,166.06

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Solution

The fourth proportional to 717,454.80, 990,094.32 and 395,166.06 is: 545,332.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,454.80 : 990,094.32 = 395,166.06 : x
  2. Step 2: Convert to fraction form
    717,454.80/990,094.32 = 395,166.06/x
  3. Step 3: Cross multiply
    717,454.80x = 990,094.32 × 395,166.06
  4. Step 4: Simplify right side
    717,454.80x = 391,251,671,462.78
  5. Step 5: Solve for x
    x = 391,251,671,462.78/717,454.80
  6. Step 6: Final answer
    x = 545,332.85

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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.