Home / 690,345.30-1,035,588.60-264,239.13

Finding the Fourth Proportional to 690,345.30, 1,035,588.60 and 264,239.13

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Solution

The fourth proportional to 690,345.30, 1,035,588.60 and 264,239.13 is: 396,385.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,345.30 : 1,035,588.60 = 264,239.13 : x
  2. Step 2: Convert to fraction form
    690,345.30/1,035,588.60 = 264,239.13/x
  3. Step 3: Cross multiply
    690,345.30x = 1,035,588.60 × 264,239.13
  4. Step 4: Simplify right side
    690,345.30x = 273,643,030,701.92
  5. Step 5: Solve for x
    x = 273,643,030,701.92/690,345.30
  6. Step 6: Final answer
    x = 396,385.74

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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.