Home / 838,405.50-1,157,291.22-498,866.46

Finding the Fourth Proportional to 838,405.50, 1,157,291.22 and 498,866.46

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Solution

The fourth proportional to 838,405.50, 1,157,291.22 and 498,866.46 is: 688,609.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,405.50 : 1,157,291.22 = 498,866.46 : x
  2. Step 2: Convert to fraction form
    838,405.50/1,157,291.22 = 498,866.46/x
  3. Step 3: Cross multiply
    838,405.50x = 1,157,291.22 × 498,866.46
  4. Step 4: Simplify right side
    838,405.50x = 577,333,774,110.48
  5. Step 5: Solve for x
    x = 577,333,774,110.48/838,405.50
  6. Step 6: Final answer
    x = 688,609.24

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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.