Home / 724,563.60-1,087,039.80-646,220.40

Finding the Fourth Proportional to 724,563.60, 1,087,039.80 and 646,220.40

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Solution

The fourth proportional to 724,563.60, 1,087,039.80 and 646,220.40 is: 969,503.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,563.60 : 1,087,039.80 = 646,220.40 : x
  2. Step 2: Convert to fraction form
    724,563.60/1,087,039.80 = 646,220.40/x
  3. Step 3: Cross multiply
    724,563.60x = 1,087,039.80 × 646,220.40
  4. Step 4: Simplify right side
    724,563.60x = 702,467,294,371.92
  5. Step 5: Solve for x
    x = 702,467,294,371.92/724,563.60
  6. Step 6: Final answer
    x = 969,503.98

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1.5x scale

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.