Home / 1,487,123.60-2,230,685.40-422,061.20

Finding the Fourth Proportional to 1,487,123.60, 2,230,685.40 and 422,061.20

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Solution

The fourth proportional to 1,487,123.60, 2,230,685.40 and 422,061.20 is: 633,091.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,123.60 : 2,230,685.40 = 422,061.20 : x
  2. Step 2: Convert to fraction form
    1,487,123.60/2,230,685.40 = 422,061.20/x
  3. Step 3: Cross multiply
    1,487,123.60x = 2,230,685.40 × 422,061.20
  4. Step 4: Simplify right side
    1,487,123.60x = 941,485,756,746.48
  5. Step 5: Solve for x
    x = 941,485,756,746.48/1,487,123.60
  6. Step 6: Final answer
    x = 633,091.80

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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.