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Finding the Fourth Proportional to 713,385.60, 983,665.92 and 454,917.12

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Solution

The fourth proportional to 713,385.60, 983,665.92 and 454,917.12 is: 627,271.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,385.60 : 983,665.92 = 454,917.12 : x
  2. Step 2: Convert to fraction form
    713,385.60/983,665.92 = 454,917.12/x
  3. Step 3: Cross multiply
    713,385.60x = 983,665.92 × 454,917.12
  4. Step 4: Simplify right side
    713,385.60x = 447,486,467,368.55
  5. Step 5: Solve for x
    x = 447,486,467,368.55/713,385.60
  6. Step 6: Final answer
    x = 627,271.52

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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.