Home / 991,681.29-1,486,649.51-393,062.63

Finding the Fourth Proportional to 991,681.29, 1,486,649.51 and 393,062.63

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Solution

The fourth proportional to 991,681.29, 1,486,649.51 and 393,062.63 is: 589,248.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,681.29 : 1,486,649.51 = 393,062.63 : x
  2. Step 2: Convert to fraction form
    991,681.29/1,486,649.51 = 393,062.63/x
  3. Step 3: Cross multiply
    991,681.29x = 1,486,649.51 × 393,062.63
  4. Step 4: Simplify right side
    991,681.29x = 584,346,368,040.12
  5. Step 5: Solve for x
    x = 584,346,368,040.12/991,681.29
  6. Step 6: Final answer
    x = 589,248.15

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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.