Home / 1,520,430.35-2,280,645.45-699,686.10

Finding the Fourth Proportional to 1,520,430.35, 2,280,645.45 and 699,686.10

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Solution

The fourth proportional to 1,520,430.35, 2,280,645.45 and 699,686.10 is: 1,049,529.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,430.35 : 2,280,645.45 = 699,686.10 : x
  2. Step 2: Convert to fraction form
    1,520,430.35/2,280,645.45 = 699,686.10/x
  3. Step 3: Cross multiply
    1,520,430.35x = 2,280,645.45 × 699,686.10
  4. Step 4: Simplify right side
    1,520,430.35x = 1,595,735,920,393.25
  5. Step 5: Solve for x
    x = 1,595,735,920,393.25/1,520,430.35
  6. Step 6: Final answer
    x = 1,049,529.12

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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.