Home / 986,168.22-1,478,681.82-386,427.21

Finding the Fourth Proportional to 986,168.22, 1,478,681.82 and 386,427.21

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Solution

The fourth proportional to 986,168.22, 1,478,681.82 and 386,427.21 is: 579,417.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,168.22 : 1,478,681.82 = 386,427.21 : x
  2. Step 2: Convert to fraction form
    986,168.22/1,478,681.82 = 386,427.21/x
  3. Step 3: Cross multiply
    986,168.22x = 1,478,681.82 × 386,427.21
  4. Step 4: Simplify right side
    986,168.22x = 571,402,890,180.32
  5. Step 5: Solve for x
    x = 571,402,890,180.32/986,168.22
  6. Step 6: Final answer
    x = 579,417.26

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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.