Home / 985,608.81-1,478,424.96-386,851.95

Finding the Fourth Proportional to 985,608.81, 1,478,424.96 and 386,851.95

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Solution

The fourth proportional to 985,608.81, 1,478,424.96 and 386,851.95 is: 580,282.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,608.81 : 1,478,424.96 = 386,851.95 : x
  2. Step 2: Convert to fraction form
    985,608.81/1,478,424.96 = 386,851.95/x
  3. Step 3: Cross multiply
    985,608.81x = 1,478,424.96 × 386,851.95
  4. Step 4: Simplify right side
    985,608.81x = 571,931,578,704.67
  5. Step 5: Solve for x
    x = 571,931,578,704.67/985,608.81
  6. Step 6: Final answer
    x = 580,282.53

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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.