Home / 651,856.40-976,618.20-402,246.80

Finding the Fourth Proportional to 651,856.40, 976,618.20 and 402,246.80

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Solution

The fourth proportional to 651,856.40, 976,618.20 and 402,246.80 is: 602,650.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,856.40 : 976,618.20 = 402,246.80 : x
  2. Step 2: Convert to fraction form
    651,856.40/976,618.20 = 402,246.80/x
  3. Step 3: Cross multiply
    651,856.40x = 976,618.20 × 402,246.80
  4. Step 4: Simplify right side
    651,856.40x = 392,841,545,771.76
  5. Step 5: Solve for x
    x = 392,841,545,771.76/651,856.40
  6. Step 6: Final answer
    x = 602,650.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.