Home / 1,007,289.20-1,509,767.40-407,856.80

Finding the Fourth Proportional to 1,007,289.20, 1,509,767.40 and 407,856.80

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Solution

The fourth proportional to 1,007,289.20, 1,509,767.40 and 407,856.80 is: 611,312.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,289.20 : 1,509,767.40 = 407,856.80 : x
  2. Step 2: Convert to fraction form
    1,007,289.20/1,509,767.40 = 407,856.80/x
  3. Step 3: Cross multiply
    1,007,289.20x = 1,509,767.40 × 407,856.80
  4. Step 4: Simplify right side
    1,007,289.20x = 615,768,900,508.32
  5. Step 5: Solve for x
    x = 615,768,900,508.32/1,007,289.20
  6. Step 6: Final answer
    x = 611,312.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.