Home / 1,215,897.16-1,677,969.72-672,041.53

Finding the Fourth Proportional to 1,215,897.16, 1,677,969.72 and 672,041.53

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Solution

The fourth proportional to 1,215,897.16, 1,677,969.72 and 672,041.53 is: 927,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,897.16 : 1,677,969.72 = 672,041.53 : x
  2. Step 2: Convert to fraction form
    1,215,897.16/1,677,969.72 = 672,041.53/x
  3. Step 3: Cross multiply
    1,215,897.16x = 1,677,969.72 × 672,041.53
  4. Step 4: Simplify right side
    1,215,897.16x = 1,127,665,337,922.47
  5. Step 5: Solve for x
    x = 1,127,665,337,922.47/1,215,897.16
  6. Step 6: Final answer
    x = 927,434.80

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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.