Home / 838,528.64-1,257,778.08-207,442.40

Finding the Fourth Proportional to 838,528.64, 1,257,778.08 and 207,442.40

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Solution

The fourth proportional to 838,528.64, 1,257,778.08 and 207,442.40 is: 311,159.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,528.64 : 1,257,778.08 = 207,442.40 : x
  2. Step 2: Convert to fraction form
    838,528.64/1,257,778.08 = 207,442.40/x
  3. Step 3: Cross multiply
    838,528.64x = 1,257,778.08 × 207,442.40
  4. Step 4: Simplify right side
    838,528.64x = 260,916,503,582.59
  5. Step 5: Solve for x
    x = 260,916,503,582.59/838,528.64
  6. Step 6: Final answer
    x = 311,159.92

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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.