Home / 790,565.76-1,090,979.40-427,989.48

Finding the Fourth Proportional to 790,565.76, 1,090,979.40 and 427,989.48

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Solution

The fourth proportional to 790,565.76, 1,090,979.40 and 427,989.48 is: 590,624.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,565.76 : 1,090,979.40 = 427,989.48 : x
  2. Step 2: Convert to fraction form
    790,565.76/1,090,979.40 = 427,989.48/x
  3. Step 3: Cross multiply
    790,565.76x = 1,090,979.40 × 427,989.48
  4. Step 4: Simplify right side
    790,565.76x = 466,927,706,096.71
  5. Step 5: Solve for x
    x = 466,927,706,096.71/790,565.76
  6. Step 6: Final answer
    x = 590,624.75

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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.