Home / 1,290,854.21-1,781,323.85-710,040.49

Finding the Fourth Proportional to 1,290,854.21, 1,781,323.85 and 710,040.49

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Solution

The fourth proportional to 1,290,854.21, 1,781,323.85 and 710,040.49 is: 979,825.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,854.21 : 1,781,323.85 = 710,040.49 : x
  2. Step 2: Convert to fraction form
    1,290,854.21/1,781,323.85 = 710,040.49/x
  3. Step 3: Cross multiply
    1,290,854.21x = 1,781,323.85 × 710,040.49
  4. Step 4: Simplify right side
    1,290,854.21x = 1,264,812,059,302.69
  5. Step 5: Solve for x
    x = 1,264,812,059,302.69/1,290,854.21
  6. Step 6: Final answer
    x = 979,825.65

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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.