Home / 698,042.10-1,044,996.36-430,943.76

Finding the Fourth Proportional to 698,042.10, 1,044,996.36 and 430,943.76

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Solution

The fourth proportional to 698,042.10, 1,044,996.36 and 430,943.76 is: 645,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,042.10 : 1,044,996.36 = 430,943.76 : x
  2. Step 2: Convert to fraction form
    698,042.10/1,044,996.36 = 430,943.76/x
  3. Step 3: Cross multiply
    698,042.10x = 1,044,996.36 × 430,943.76
  4. Step 4: Simplify right side
    698,042.10x = 450,334,660,564.71
  5. Step 5: Solve for x
    x = 450,334,660,564.71/698,042.10
  6. Step 6: Final answer
    x = 645,139.69

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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.