Home / 959,569.20-1,438,041.60-638,809.20

Finding the Fourth Proportional to 959,569.20, 1,438,041.60 and 638,809.20

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Solution

The fourth proportional to 959,569.20, 1,438,041.60 and 638,809.20 is: 957,340.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,569.20 : 1,438,041.60 = 638,809.20 : x
  2. Step 2: Convert to fraction form
    959,569.20/1,438,041.60 = 638,809.20/x
  3. Step 3: Cross multiply
    959,569.20x = 1,438,041.60 × 638,809.20
  4. Step 4: Simplify right side
    959,569.20x = 918,634,204,062.72
  5. Step 5: Solve for x
    x = 918,634,204,062.72/959,569.20
  6. Step 6: Final answer
    x = 957,340.24

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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.