Home / 849,751.40-1,272,002.70-493,707.80

Finding the Fourth Proportional to 849,751.40, 1,272,002.70 and 493,707.80

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Solution

The fourth proportional to 849,751.40, 1,272,002.70 and 493,707.80 is: 739,036.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,751.40 : 1,272,002.70 = 493,707.80 : x
  2. Step 2: Convert to fraction form
    849,751.40/1,272,002.70 = 493,707.80/x
  3. Step 3: Cross multiply
    849,751.40x = 1,272,002.70 × 493,707.80
  4. Step 4: Simplify right side
    849,751.40x = 627,997,654,611.06
  5. Step 5: Solve for x
    x = 627,997,654,611.06/849,751.40
  6. Step 6: Final answer
    x = 739,036.92

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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.