Home / 657,756.42-906,947.19-485,923.02

Finding the Fourth Proportional to 657,756.42, 906,947.19 and 485,923.02

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Solution

The fourth proportional to 657,756.42, 906,947.19 and 485,923.02 is: 670,014.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,756.42 : 906,947.19 = 485,923.02 : x
  2. Step 2: Convert to fraction form
    657,756.42/906,947.19 = 485,923.02/x
  3. Step 3: Cross multiply
    657,756.42x = 906,947.19 × 485,923.02
  4. Step 4: Simplify right side
    657,756.42x = 440,706,517,545.31
  5. Step 5: Solve for x
    x = 440,706,517,545.31/657,756.42
  6. Step 6: Final answer
    x = 670,014.77

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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.