Home / 530,152.97-731,603.05-288,430.02

Finding the Fourth Proportional to 530,152.97, 731,603.05 and 288,430.02

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Solution

The fourth proportional to 530,152.97, 731,603.05 and 288,430.02 is: 398,029.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,152.97 : 731,603.05 = 288,430.02 : x
  2. Step 2: Convert to fraction form
    530,152.97/731,603.05 = 288,430.02/x
  3. Step 3: Cross multiply
    530,152.97x = 731,603.05 × 288,430.02
  4. Step 4: Simplify right side
    530,152.97x = 211,016,281,622.49
  5. Step 5: Solve for x
    x = 211,016,281,622.49/530,152.97
  6. Step 6: Final answer
    x = 398,029.05

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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.