Home / 525,281.22-724,214.52-402,911.28

Finding the Fourth Proportional to 525,281.22, 724,214.52 and 402,911.28

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Solution

The fourth proportional to 525,281.22, 724,214.52 and 402,911.28 is: 555,500.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,281.22 : 724,214.52 = 402,911.28 : x
  2. Step 2: Convert to fraction form
    525,281.22/724,214.52 = 402,911.28/x
  3. Step 3: Cross multiply
    525,281.22x = 724,214.52 × 402,911.28
  4. Step 4: Simplify right side
    525,281.22x = 291,794,199,247.79
  5. Step 5: Solve for x
    x = 291,794,199,247.79/525,281.22
  6. Step 6: Final answer
    x = 555,500.92

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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.