Home / 530,192.32-731,643.46-288,475.82

Finding the Fourth Proportional to 530,192.32, 731,643.46 and 288,475.82

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Solution

The fourth proportional to 530,192.32, 731,643.46 and 288,475.82 is: 398,084.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,192.32 : 731,643.46 = 288,475.82 : x
  2. Step 2: Convert to fraction form
    530,192.32/731,643.46 = 288,475.82/x
  3. Step 3: Cross multiply
    530,192.32x = 731,643.46 × 288,475.82
  4. Step 4: Simplify right side
    530,192.32x = 211,061,447,071.14
  5. Step 5: Solve for x
    x = 211,061,447,071.14/530,192.32
  6. Step 6: Final answer
    x = 398,084.69

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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.