Home / 651,710.70-976,788.45-272,630.70

Finding the Fourth Proportional to 651,710.70, 976,788.45 and 272,630.70

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Solution

The fourth proportional to 651,710.70, 976,788.45 and 272,630.70 is: 408,620.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,710.70 : 976,788.45 = 272,630.70 : x
  2. Step 2: Convert to fraction form
    651,710.70/976,788.45 = 272,630.70/x
  3. Step 3: Cross multiply
    651,710.70x = 976,788.45 × 272,630.70
  4. Step 4: Simplify right side
    651,710.70x = 266,302,518,875.42
  5. Step 5: Solve for x
    x = 266,302,518,875.42/651,710.70
  6. Step 6: Final answer
    x = 408,620.76

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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.