Home / 949,270.96-1,309,989.21-513,688

Finding the Fourth Proportional to 949,270.96, 1,309,989.21 and 513,688

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Solution

The fourth proportional to 949,270.96, 1,309,989.21 and 513,688 is: 708,886.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,270.96 : 1,309,989.21 = 513,688 : x
  2. Step 2: Convert to fraction form
    949,270.96/1,309,989.21 = 513,688/x
  3. Step 3: Cross multiply
    949,270.96x = 1,309,989.21 × 513,688
  4. Step 4: Simplify right side
    949,270.96x = 672,925,737,306.48
  5. Step 5: Solve for x
    x = 672,925,737,306.48/949,270.96
  6. Step 6: Final answer
    x = 708,886.89

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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.