Home / 979,422.32-1,351,602.79-549,702.45

Finding the Fourth Proportional to 979,422.32, 1,351,602.79 and 549,702.45

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Solution

The fourth proportional to 979,422.32, 1,351,602.79 and 549,702.45 is: 758,589.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,422.32 : 1,351,602.79 = 549,702.45 : x
  2. Step 2: Convert to fraction form
    979,422.32/1,351,602.79 = 549,702.45/x
  3. Step 3: Cross multiply
    979,422.32x = 1,351,602.79 × 549,702.45
  4. Step 4: Simplify right side
    979,422.32x = 742,979,366,034.66
  5. Step 5: Solve for x
    x = 742,979,366,034.66/979,422.32
  6. Step 6: Final answer
    x = 758,589.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.