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Finding the Fourth Proportional to 440,386.60, 607,713.20 and 249,401.38

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Solution

The fourth proportional to 440,386.60, 607,713.20 and 249,401.38 is: 344,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,386.60 : 607,713.20 = 249,401.38 : x
  2. Step 2: Convert to fraction form
    440,386.60/607,713.20 = 249,401.38/x
  3. Step 3: Cross multiply
    440,386.60x = 607,713.20 × 249,401.38
  4. Step 4: Simplify right side
    440,386.60x = 151,564,510,724.22
  5. Step 5: Solve for x
    x = 151,564,510,724.22/440,386.60
  6. Step 6: Final answer
    x = 344,162.40

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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.