Home / 913,826.61-1,370,886.80-314,640.45

Finding the Fourth Proportional to 913,826.61, 1,370,886.80 and 314,640.45

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Solution

The fourth proportional to 913,826.61, 1,370,886.80 and 314,640.45 is: 472,011.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,826.61 : 1,370,886.80 = 314,640.45 : x
  2. Step 2: Convert to fraction form
    913,826.61/1,370,886.80 = 314,640.45/x
  3. Step 3: Cross multiply
    913,826.61x = 1,370,886.80 × 314,640.45
  4. Step 4: Simplify right side
    913,826.61x = 431,336,438,077.86
  5. Step 5: Solve for x
    x = 431,336,438,077.86/913,826.61
  6. Step 6: Final answer
    x = 472,011.25

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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.