Home / 638,710.28-881,402.82-352,225.16

Finding the Fourth Proportional to 638,710.28, 881,402.82 and 352,225.16

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Solution

The fourth proportional to 638,710.28, 881,402.82 and 352,225.16 is: 486,061.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,710.28 : 881,402.82 = 352,225.16 : x
  2. Step 2: Convert to fraction form
    638,710.28/881,402.82 = 352,225.16/x
  3. Step 3: Cross multiply
    638,710.28x = 881,402.82 × 352,225.16
  4. Step 4: Simplify right side
    638,710.28x = 310,452,249,298.95
  5. Step 5: Solve for x
    x = 310,452,249,298.95/638,710.28
  6. Step 6: Final answer
    x = 486,061.14

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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.