Home / 1,215,435.80-1,677,291.60-671,569.40

Finding the Fourth Proportional to 1,215,435.80, 1,677,291.60 and 671,569.40

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Solution

The fourth proportional to 1,215,435.80, 1,677,291.60 and 671,569.40 is: 926,760.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,435.80 : 1,677,291.60 = 671,569.40 : x
  2. Step 2: Convert to fraction form
    1,215,435.80/1,677,291.60 = 671,569.40/x
  3. Step 3: Cross multiply
    1,215,435.80x = 1,677,291.60 × 671,569.40
  4. Step 4: Simplify right side
    1,215,435.80x = 1,126,417,713,437.04
  5. Step 5: Solve for x
    x = 1,126,417,713,437.04/1,215,435.80
  6. Step 6: Final answer
    x = 926,760.35

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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.