Home / 810,006.40-1,215,009.60-652,542.40

Finding the Fourth Proportional to 810,006.40, 1,215,009.60 and 652,542.40

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Solution

The fourth proportional to 810,006.40, 1,215,009.60 and 652,542.40 is: 978,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,006.40 : 1,215,009.60 = 652,542.40 : x
  2. Step 2: Convert to fraction form
    810,006.40/1,215,009.60 = 652,542.40/x
  3. Step 3: Cross multiply
    810,006.40x = 1,215,009.60 × 652,542.40
  4. Step 4: Simplify right side
    810,006.40x = 792,845,280,407.04
  5. Step 5: Solve for x
    x = 792,845,280,407.04/810,006.40
  6. Step 6: Final answer
    x = 978,813.60

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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.