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Finding the Fourth Proportional to 768,017.60, 1,059,862.10 and 423,851.04

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Solution

The fourth proportional to 768,017.60, 1,059,862.10 and 423,851.04 is: 584,913.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,017.60 : 1,059,862.10 = 423,851.04 : x
  2. Step 2: Convert to fraction form
    768,017.60/1,059,862.10 = 423,851.04/x
  3. Step 3: Cross multiply
    768,017.60x = 1,059,862.10 × 423,851.04
  4. Step 4: Simplify right side
    768,017.60x = 449,223,653,341.58
  5. Step 5: Solve for x
    x = 449,223,653,341.58/768,017.60
  6. Step 6: Final answer
    x = 584,913.23

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1.5x scale

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.