Home / 991,515.28-1,487,261.04-360,423.76

Finding the Fourth Proportional to 991,515.28, 1,487,261.04 and 360,423.76

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Solution

The fourth proportional to 991,515.28, 1,487,261.04 and 360,423.76 is: 540,631.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,515.28 : 1,487,261.04 = 360,423.76 : x
  2. Step 2: Convert to fraction form
    991,515.28/1,487,261.04 = 360,423.76/x
  3. Step 3: Cross multiply
    991,515.28x = 1,487,261.04 × 360,423.76
  4. Step 4: Simplify right side
    991,515.28x = 536,044,216,138.31
  5. Step 5: Solve for x
    x = 536,044,216,138.31/991,515.28
  6. Step 6: Final answer
    x = 540,631.32

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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.