Home / 841,605.12-1,262,407.68-342,881.28

Finding the Fourth Proportional to 841,605.12, 1,262,407.68 and 342,881.28

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Solution

The fourth proportional to 841,605.12, 1,262,407.68 and 342,881.28 is: 514,321.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,605.12 : 1,262,407.68 = 342,881.28 : x
  2. Step 2: Convert to fraction form
    841,605.12/1,262,407.68 = 342,881.28/x
  3. Step 3: Cross multiply
    841,605.12x = 1,262,407.68 × 342,881.28
  4. Step 4: Simplify right side
    841,605.12x = 432,855,961,200.23
  5. Step 5: Solve for x
    x = 432,855,961,200.23/841,605.12
  6. Step 6: Final answer
    x = 514,321.92

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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.