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Finding the Fourth Proportional to 566,482.40, 781,763.31 and 308,376.53

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Solution

The fourth proportional to 566,482.40, 781,763.31 and 308,376.53 is: 425,569.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,482.40 : 781,763.31 = 308,376.53 : x
  2. Step 2: Convert to fraction form
    566,482.40/781,763.31 = 308,376.53/x
  3. Step 3: Cross multiply
    566,482.40x = 781,763.31 × 308,376.53
  4. Step 4: Simplify right side
    566,482.40x = 241,077,452,910.30
  5. Step 5: Solve for x
    x = 241,077,452,910.30/566,482.40
  6. Step 6: Final answer
    x = 425,569.19

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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.