Home / 905,429.10-1,249,419.02-523,480.50

Finding the Fourth Proportional to 905,429.10, 1,249,419.02 and 523,480.50

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Solution

The fourth proportional to 905,429.10, 1,249,419.02 and 523,480.50 is: 722,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,429.10 : 1,249,419.02 = 523,480.50 : x
  2. Step 2: Convert to fraction form
    905,429.10/1,249,419.02 = 523,480.50/x
  3. Step 3: Cross multiply
    905,429.10x = 1,249,419.02 × 523,480.50
  4. Step 4: Simplify right side
    905,429.10x = 654,046,493,299.11
  5. Step 5: Solve for x
    x = 654,046,493,299.11/905,429.10
  6. Step 6: Final answer
    x = 722,360.80

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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.