Home / 927,103.20-1,390,808.40-394,879.20

Finding the Fourth Proportional to 927,103.20, 1,390,808.40 and 394,879.20

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Solution

The fourth proportional to 927,103.20, 1,390,808.40 and 394,879.20 is: 592,384.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,103.20 : 1,390,808.40 = 394,879.20 : x
  2. Step 2: Convert to fraction form
    927,103.20/1,390,808.40 = 394,879.20/x
  3. Step 3: Cross multiply
    927,103.20x = 1,390,808.40 × 394,879.20
  4. Step 4: Simplify right side
    927,103.20x = 549,201,308,345.28
  5. Step 5: Solve for x
    x = 549,201,308,345.28/927,103.20
  6. Step 6: Final answer
    x = 592,384.22

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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.