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Finding the Fourth Proportional to 908,728.28, 1,254,258.84 and 564,824

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Solution

The fourth proportional to 908,728.28, 1,254,258.84 and 564,824 is: 779,590.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,728.28 : 1,254,258.84 = 564,824 : x
  2. Step 2: Convert to fraction form
    908,728.28/1,254,258.84 = 564,824/x
  3. Step 3: Cross multiply
    908,728.28x = 1,254,258.84 × 564,824
  4. Step 4: Simplify right side
    908,728.28x = 708,435,495,044.16
  5. Step 5: Solve for x
    x = 708,435,495,044.16/908,728.28
  6. Step 6: Final answer
    x = 779,590.02

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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.