Home / 666,939.60-1,001,478.60-617,821.20

Finding the Fourth Proportional to 666,939.60, 1,001,478.60 and 617,821.20

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Solution

The fourth proportional to 666,939.60, 1,001,478.60 and 617,821.20 is: 927,722.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,939.60 : 1,001,478.60 = 617,821.20 : x
  2. Step 2: Convert to fraction form
    666,939.60/1,001,478.60 = 617,821.20/x
  3. Step 3: Cross multiply
    666,939.60x = 1,001,478.60 × 617,821.20
  4. Step 4: Simplify right side
    666,939.60x = 618,734,710,426.32
  5. Step 5: Solve for x
    x = 618,734,710,426.32/666,939.60
  6. Step 6: Final answer
    x = 927,722.26

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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.