Home / 530,392.44-731,931.35-288,680.34

Finding the Fourth Proportional to 530,392.44, 731,931.35 and 288,680.34

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Solution

The fourth proportional to 530,392.44, 731,931.35 and 288,680.34 is: 398,373.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,392.44 : 731,931.35 = 288,680.34 : x
  2. Step 2: Convert to fraction form
    530,392.44/731,931.35 = 288,680.34/x
  3. Step 3: Cross multiply
    530,392.44x = 731,931.35 × 288,680.34
  4. Step 4: Simplify right side
    530,392.44x = 211,294,189,531.26
  5. Step 5: Solve for x
    x = 211,294,189,531.26/530,392.44
  6. Step 6: Final answer
    x = 398,373.31

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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.