Home / 766,438.25-1,057,605.52-472,041.05

Finding the Fourth Proportional to 766,438.25, 1,057,605.52 and 472,041.05

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Solution

The fourth proportional to 766,438.25, 1,057,605.52 and 472,041.05 is: 651,367.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,438.25 : 1,057,605.52 = 472,041.05 : x
  2. Step 2: Convert to fraction form
    766,438.25/1,057,605.52 = 472,041.05/x
  3. Step 3: Cross multiply
    766,438.25x = 1,057,605.52 × 472,041.05
  4. Step 4: Simplify right side
    766,438.25x = 499,233,225,638.12
  5. Step 5: Solve for x
    x = 499,233,225,638.12/766,438.25
  6. Step 6: Final answer
    x = 651,367.84

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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.