Home / 780,031.30-1,170,046.95-442,941.70

Finding the Fourth Proportional to 780,031.30, 1,170,046.95 and 442,941.70

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Solution

The fourth proportional to 780,031.30, 1,170,046.95 and 442,941.70 is: 664,412.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,031.30 : 1,170,046.95 = 442,941.70 : x
  2. Step 2: Convert to fraction form
    780,031.30/1,170,046.95 = 442,941.70/x
  3. Step 3: Cross multiply
    780,031.30x = 1,170,046.95 × 442,941.70
  4. Step 4: Simplify right side
    780,031.30x = 518,262,585,112.82
  5. Step 5: Solve for x
    x = 518,262,585,112.82/780,031.30
  6. Step 6: Final answer
    x = 664,412.55

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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.