Home / 987,429.10-1,481,143.65-910,446.70

Finding the Fourth Proportional to 987,429.10, 1,481,143.65 and 910,446.70

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Solution

The fourth proportional to 987,429.10, 1,481,143.65 and 910,446.70 is: 1,365,670.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,429.10 : 1,481,143.65 = 910,446.70 : x
  2. Step 2: Convert to fraction form
    987,429.10/1,481,143.65 = 910,446.70/x
  3. Step 3: Cross multiply
    987,429.10x = 1,481,143.65 × 910,446.70
  4. Step 4: Simplify right side
    987,429.10x = 1,348,502,348,368.45
  5. Step 5: Solve for x
    x = 1,348,502,348,368.45/987,429.10
  6. Step 6: Final answer
    x = 1,365,670.05

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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.