Home / 530,335.48-731,848.93-288,612.86

Finding the Fourth Proportional to 530,335.48, 731,848.93 and 288,612.86

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Solution

The fourth proportional to 530,335.48, 731,848.93 and 288,612.86 is: 398,278.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,335.48 : 731,848.93 = 288,612.86 : x
  2. Step 2: Convert to fraction form
    530,335.48/731,848.93 = 288,612.86/x
  3. Step 3: Cross multiply
    530,335.48x = 731,848.93 × 288,612.86
  4. Step 4: Simplify right side
    530,335.48x = 211,221,013,511.26
  5. Step 5: Solve for x
    x = 211,221,013,511.26/530,335.48
  6. Step 6: Final answer
    x = 398,278.11

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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.