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Finding the Fourth Proportional to 419,172.52, 578,368.38 and 249,373.48

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Solution

The fourth proportional to 419,172.52, 578,368.38 and 249,373.48 is: 344,082.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,172.52 : 578,368.38 = 249,373.48 : x
  2. Step 2: Convert to fraction form
    419,172.52/578,368.38 = 249,373.48/x
  3. Step 3: Cross multiply
    419,172.52x = 578,368.38 × 249,373.48
  4. Step 4: Simplify right side
    419,172.52x = 144,229,735,642.56
  5. Step 5: Solve for x
    x = 144,229,735,642.56/419,172.52
  6. Step 6: Final answer
    x = 344,082.04

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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.