Home / 905,217.60-1,249,424.72-523,189.20

Finding the Fourth Proportional to 905,217.60, 1,249,424.72 and 523,189.20

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Solution

The fourth proportional to 905,217.60, 1,249,424.72 and 523,189.20 is: 722,130.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,217.60 : 1,249,424.72 = 523,189.20 : x
  2. Step 2: Convert to fraction form
    905,217.60/1,249,424.72 = 523,189.20/x
  3. Step 3: Cross multiply
    905,217.60x = 1,249,424.72 × 523,189.20
  4. Step 4: Simplify right side
    905,217.60x = 653,685,519,717.02
  5. Step 5: Solve for x
    x = 653,685,519,717.02/905,217.60
  6. Step 6: Final answer
    x = 722,130.81

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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.