Home / 530,191.32-731,642.08-288,474.82

Finding the Fourth Proportional to 530,191.32, 731,642.08 and 288,474.82

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Solution

The fourth proportional to 530,191.32, 731,642.08 and 288,474.82 is: 398,083.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,191.32 : 731,642.08 = 288,474.82 : x
  2. Step 2: Convert to fraction form
    530,191.32/731,642.08 = 288,474.82/x
  3. Step 3: Cross multiply
    530,191.32x = 731,642.08 × 288,474.82
  4. Step 4: Simplify right side
    530,191.32x = 211,060,317,332.43
  5. Step 5: Solve for x
    x = 211,060,317,332.43/530,191.32
  6. Step 6: Final answer
    x = 398,083.31

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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.