Home / 724,144,990.40-1,086,918,987.76-684,818,356.48

Finding the Fourth Proportional to 724,144,990.40, 1,086,918,987.76 and 684,818,356.48

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Solution

The fourth proportional to 724,144,990.40, 1,086,918,987.76 and 684,818,356.48 is: 1,027,890,939.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,144,990.40 : 1,086,918,987.76 = 684,818,356.48 : x
  2. Step 2: Convert to fraction form
    724,144,990.40/1,086,918,987.76 = 684,818,356.48/x
  3. Step 3: Cross multiply
    724,144,990.40x = 1,086,918,987.76 × 684,818,356.48
  4. Step 4: Simplify right side
    724,144,990.40x = 744,342,074,824,708,480
  5. Step 5: Solve for x
    x = 744,342,074,824,708,480/724,144,990.40
  6. Step 6: Final answer
    x = 1,027,890,939.93

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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.