Home / 977,105.40-1,465,658.10-819,641.40

Finding the Fourth Proportional to 977,105.40, 1,465,658.10 and 819,641.40

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Solution

The fourth proportional to 977,105.40, 1,465,658.10 and 819,641.40 is: 1,229,462.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,105.40 : 1,465,658.10 = 819,641.40 : x
  2. Step 2: Convert to fraction form
    977,105.40/1,465,658.10 = 819,641.40/x
  3. Step 3: Cross multiply
    977,105.40x = 1,465,658.10 × 819,641.40
  4. Step 4: Simplify right side
    977,105.40x = 1,201,314,057,005.34
  5. Step 5: Solve for x
    x = 1,201,314,057,005.34/977,105.40
  6. Step 6: Final answer
    x = 1,229,462.10

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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.