Home / 909,575.33-1,255,211.84-547,209.47

Finding the Fourth Proportional to 909,575.33, 1,255,211.84 and 547,209.47

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Solution

The fourth proportional to 909,575.33, 1,255,211.84 and 547,209.47 is: 755,147.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,575.33 : 1,255,211.84 = 547,209.47 : x
  2. Step 2: Convert to fraction form
    909,575.33/1,255,211.84 = 547,209.47/x
  3. Step 3: Cross multiply
    909,575.33x = 1,255,211.84 × 547,209.47
  4. Step 4: Simplify right side
    909,575.33x = 686,863,810,210.18
  5. Step 5: Solve for x
    x = 686,863,810,210.18/909,575.33
  6. Step 6: Final answer
    x = 755,147.81

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1.5x scale

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.