Home / 830,001.84-1,142,990.55-721,056.45

Finding the Fourth Proportional to 830,001.84, 1,142,990.55 and 721,056.45

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Solution

The fourth proportional to 830,001.84, 1,142,990.55 and 721,056.45 is: 992,962.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,001.84 : 1,142,990.55 = 721,056.45 : x
  2. Step 2: Convert to fraction form
    830,001.84/1,142,990.55 = 721,056.45/x
  3. Step 3: Cross multiply
    830,001.84x = 1,142,990.55 × 721,056.45
  4. Step 4: Simplify right side
    830,001.84x = 824,160,708,366.55
  5. Step 5: Solve for x
    x = 824,160,708,366.55/830,001.84
  6. Step 6: Final answer
    x = 992,962.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.