Home / 909,365.22-1,255,037.14-522,301.86

Finding the Fourth Proportional to 909,365.22, 1,255,037.14 and 522,301.86

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Solution

The fourth proportional to 909,365.22, 1,255,037.14 and 522,301.86 is: 720,841.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,365.22 : 1,255,037.14 = 522,301.86 : x
  2. Step 2: Convert to fraction form
    909,365.22/1,255,037.14 = 522,301.86/x
  3. Step 3: Cross multiply
    909,365.22x = 1,255,037.14 × 522,301.86
  4. Step 4: Simplify right side
    909,365.22x = 655,508,226,315.90
  5. Step 5: Solve for x
    x = 655,508,226,315.90/909,365.22
  6. Step 6: Final answer
    x = 720,841.54

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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.