Home / 977,143.20-1,465,666.20-503,876.40

Finding the Fourth Proportional to 977,143.20, 1,465,666.20 and 503,876.40

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Solution

The fourth proportional to 977,143.20, 1,465,666.20 and 503,876.40 is: 755,789.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,143.20 : 1,465,666.20 = 503,876.40 : x
  2. Step 2: Convert to fraction form
    977,143.20/1,465,666.20 = 503,876.40/x
  3. Step 3: Cross multiply
    977,143.20x = 1,465,666.20 × 503,876.40
  4. Step 4: Simplify right side
    977,143.20x = 738,514,608,457.68
  5. Step 5: Solve for x
    x = 738,514,608,457.68/977,143.20
  6. Step 6: Final answer
    x = 755,789.54

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1.5x scale

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.