Home / 951,220.31-1,312,683.71-521,491.21

Finding the Fourth Proportional to 951,220.31, 1,312,683.71 and 521,491.21

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Solution

The fourth proportional to 951,220.31, 1,312,683.71 and 521,491.21 is: 719,657.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,220.31 : 1,312,683.71 = 521,491.21 : x
  2. Step 2: Convert to fraction form
    951,220.31/1,312,683.71 = 521,491.21/x
  3. Step 3: Cross multiply
    951,220.31x = 1,312,683.71 × 521,491.21
  4. Step 4: Simplify right side
    951,220.31x = 684,553,010,386.02
  5. Step 5: Solve for x
    x = 684,553,010,386.02/951,220.31
  6. Step 6: Final answer
    x = 719,657.69

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1.5x scale

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.