Home / 913,765.68-1,370,973.06-408,280.32

Finding the Fourth Proportional to 913,765.68, 1,370,973.06 and 408,280.32

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Solution

The fourth proportional to 913,765.68, 1,370,973.06 and 408,280.32 is: 612,565.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,765.68 : 1,370,973.06 = 408,280.32 : x
  2. Step 2: Convert to fraction form
    913,765.68/1,370,973.06 = 408,280.32/x
  3. Step 3: Cross multiply
    913,765.68x = 1,370,973.06 × 408,280.32
  4. Step 4: Simplify right side
    913,765.68x = 559,741,319,648.18
  5. Step 5: Solve for x
    x = 559,741,319,648.18/913,765.68
  6. Step 6: Final answer
    x = 612,565.49

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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.