Home / 530,191.82-731,642.78-288,475.32

Finding the Fourth Proportional to 530,191.82, 731,642.78 and 288,475.32

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Solution

The fourth proportional to 530,191.82, 731,642.78 and 288,475.32 is: 398,084.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,191.82 : 731,642.78 = 288,475.32 : x
  2. Step 2: Convert to fraction form
    530,191.82/731,642.78 = 288,475.32/x
  3. Step 3: Cross multiply
    530,191.82x = 731,642.78 × 288,475.32
  4. Step 4: Simplify right side
    530,191.82x = 211,060,883,643.81
  5. Step 5: Solve for x
    x = 211,060,883,643.81/530,191.82
  6. Step 6: Final answer
    x = 398,084.01

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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.