Home / 766,023.40-1,057,298.58-443,681.56

Finding the Fourth Proportional to 766,023.40, 1,057,298.58 and 443,681.56

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Solution

The fourth proportional to 766,023.40, 1,057,298.58 and 443,681.56 is: 612,388.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,023.40 : 1,057,298.58 = 443,681.56 : x
  2. Step 2: Convert to fraction form
    766,023.40/1,057,298.58 = 443,681.56/x
  3. Step 3: Cross multiply
    766,023.40x = 1,057,298.58 × 443,681.56
  4. Step 4: Simplify right side
    766,023.40x = 469,103,883,360.19
  5. Step 5: Solve for x
    x = 469,103,883,360.19/766,023.40
  6. Step 6: Final answer
    x = 612,388.45

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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.