Home / 891,378.71-1,337,161.80-260,294.30

Finding the Fourth Proportional to 891,378.71, 1,337,161.80 and 260,294.30

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Solution

The fourth proportional to 891,378.71, 1,337,161.80 and 260,294.30 is: 390,468.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,378.71 : 1,337,161.80 = 260,294.30 : x
  2. Step 2: Convert to fraction form
    891,378.71/1,337,161.80 = 260,294.30/x
  3. Step 3: Cross multiply
    891,378.71x = 1,337,161.80 × 260,294.30
  4. Step 4: Simplify right side
    891,378.71x = 348,055,594,717.74
  5. Step 5: Solve for x
    x = 348,055,594,717.74/891,378.71
  6. Step 6: Final answer
    x = 390,468.82

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1.5x scale

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.