Home / 1,181,246.40-1,630,119.60-644,702.40

Finding the Fourth Proportional to 1,181,246.40, 1,630,119.60 and 644,702.40

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Solution

The fourth proportional to 1,181,246.40, 1,630,119.60 and 644,702.40 is: 889,689.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,246.40 : 1,630,119.60 = 644,702.40 : x
  2. Step 2: Convert to fraction form
    1,181,246.40/1,630,119.60 = 644,702.40/x
  3. Step 3: Cross multiply
    1,181,246.40x = 1,630,119.60 × 644,702.40
  4. Step 4: Simplify right side
    1,181,246.40x = 1,050,942,018,407.04
  5. Step 5: Solve for x
    x = 1,050,942,018,407.04/1,181,246.40
  6. Step 6: Final answer
    x = 889,689.08

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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.