Home / 1,438,283.71-2,155,908.98-478,482.97

Finding the Fourth Proportional to 1,438,283.71, 2,155,908.98 and 478,482.97

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Solution

The fourth proportional to 1,438,283.71, 2,155,908.98 and 478,482.97 is: 717,219.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,283.71 : 2,155,908.98 = 478,482.97 : x
  2. Step 2: Convert to fraction form
    1,438,283.71/2,155,908.98 = 478,482.97/x
  3. Step 3: Cross multiply
    1,438,283.71x = 2,155,908.98 × 478,482.97
  4. Step 4: Simplify right side
    1,438,283.71x = 1,031,565,720,873.35
  5. Step 5: Solve for x
    x = 1,031,565,720,873.35/1,438,283.71
  6. Step 6: Final answer
    x = 717,219.91

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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.