Home / 874,865.60-1,312,298.40-542,628.80

Finding the Fourth Proportional to 874,865.60, 1,312,298.40 and 542,628.80

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Solution

The fourth proportional to 874,865.60, 1,312,298.40 and 542,628.80 is: 813,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,865.60 : 1,312,298.40 = 542,628.80 : x
  2. Step 2: Convert to fraction form
    874,865.60/1,312,298.40 = 542,628.80/x
  3. Step 3: Cross multiply
    874,865.60x = 1,312,298.40 × 542,628.80
  4. Step 4: Simplify right side
    874,865.60x = 712,090,906,033.92
  5. Step 5: Solve for x
    x = 712,090,906,033.92/874,865.60
  6. Step 6: Final answer
    x = 813,943.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.