Home / 1,407,521.60-2,111,282.40-342,555.20

Finding the Fourth Proportional to 1,407,521.60, 2,111,282.40 and 342,555.20

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Solution

The fourth proportional to 1,407,521.60, 2,111,282.40 and 342,555.20 is: 513,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,521.60 : 2,111,282.40 = 342,555.20 : x
  2. Step 2: Convert to fraction form
    1,407,521.60/2,111,282.40 = 342,555.20/x
  3. Step 3: Cross multiply
    1,407,521.60x = 2,111,282.40 × 342,555.20
  4. Step 4: Simplify right side
    1,407,521.60x = 723,230,764,788.48
  5. Step 5: Solve for x
    x = 723,230,764,788.48/1,407,521.60
  6. Step 6: Final answer
    x = 513,832.80

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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.