Home / 849,752.40-1,272,004.20-493,708.80

Finding the Fourth Proportional to 849,752.40, 1,272,004.20 and 493,708.80

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Solution

The fourth proportional to 849,752.40, 1,272,004.20 and 493,708.80 is: 739,038.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,752.40 : 1,272,004.20 = 493,708.80 : x
  2. Step 2: Convert to fraction form
    849,752.40/1,272,004.20 = 493,708.80/x
  3. Step 3: Cross multiply
    849,752.40x = 1,272,004.20 × 493,708.80
  4. Step 4: Simplify right side
    849,752.40x = 627,999,667,176.96
  5. Step 5: Solve for x
    x = 627,999,667,176.96/849,752.40
  6. Step 6: Final answer
    x = 739,038.42

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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.