Home / 915,870.60-1,263,979.08-508,103.91

Finding the Fourth Proportional to 915,870.60, 1,263,979.08 and 508,103.91

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Solution

The fourth proportional to 915,870.60, 1,263,979.08 and 508,103.91 is: 701,226.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,870.60 : 1,263,979.08 = 508,103.91 : x
  2. Step 2: Convert to fraction form
    915,870.60/1,263,979.08 = 508,103.91/x
  3. Step 3: Cross multiply
    915,870.60x = 1,263,979.08 × 508,103.91
  4. Step 4: Simplify right side
    915,870.60x = 642,232,712,706.20
  5. Step 5: Solve for x
    x = 642,232,712,706.20/915,870.60
  6. Step 6: Final answer
    x = 701,226.48

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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.