Home / 638,549.22-881,204.81-348,158.39

Finding the Fourth Proportional to 638,549.22, 881,204.81 and 348,158.39

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Solution

The fourth proportional to 638,549.22, 881,204.81 and 348,158.39 is: 480,462.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,549.22 : 881,204.81 = 348,158.39 : x
  2. Step 2: Convert to fraction form
    638,549.22/881,204.81 = 348,158.39/x
  3. Step 3: Cross multiply
    638,549.22x = 881,204.81 × 348,158.39
  4. Step 4: Simplify right side
    638,549.22x = 306,798,841,763.04
  5. Step 5: Solve for x
    x = 306,798,841,763.04/638,549.22
  6. Step 6: Final answer
    x = 480,462.32

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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.