Home / 926,383.80-1,389,575.70-642,948.60

Finding the Fourth Proportional to 926,383.80, 1,389,575.70 and 642,948.60

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Solution

The fourth proportional to 926,383.80, 1,389,575.70 and 642,948.60 is: 964,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,383.80 : 1,389,575.70 = 642,948.60 : x
  2. Step 2: Convert to fraction form
    926,383.80/1,389,575.70 = 642,948.60/x
  3. Step 3: Cross multiply
    926,383.80x = 1,389,575.70 × 642,948.60
  4. Step 4: Simplify right side
    926,383.80x = 893,425,750,909.02
  5. Step 5: Solve for x
    x = 893,425,750,909.02/926,383.80
  6. Step 6: Final answer
    x = 964,422.90

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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.