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Finding the Fourth Proportional to 440,335.28, 607,668 and 249,343.76

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Solution

The fourth proportional to 440,335.28, 607,668 and 249,343.76 is: 344,097.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,335.28 : 607,668 = 249,343.76 : x
  2. Step 2: Convert to fraction form
    440,335.28/607,668 = 249,343.76/x
  3. Step 3: Cross multiply
    440,335.28x = 607,668 × 249,343.76
  4. Step 4: Simplify right side
    440,335.28x = 151,518,223,951.68
  5. Step 5: Solve for x
    x = 151,518,223,951.68/440,335.28
  6. Step 6: Final answer
    x = 344,097.40

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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.