Home / 845,913.34-1,269,104.28-390,643.66

Finding the Fourth Proportional to 845,913.34, 1,269,104.28 and 390,643.66

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Solution

The fourth proportional to 845,913.34, 1,269,104.28 and 390,643.66 is: 586,073.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,913.34 : 1,269,104.28 = 390,643.66 : x
  2. Step 2: Convert to fraction form
    845,913.34/1,269,104.28 = 390,643.66/x
  3. Step 3: Cross multiply
    845,913.34x = 1,269,104.28 × 390,643.66
  4. Step 4: Simplify right side
    845,913.34x = 495,767,540,860.87
  5. Step 5: Solve for x
    x = 495,767,540,860.87/845,913.34
  6. Step 6: Final answer
    x = 586,073.68

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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.