Home / 1,012,142.80-1,516,464.60-478,514.80

Finding the Fourth Proportional to 1,012,142.80, 1,516,464.60 and 478,514.80

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Solution

The fourth proportional to 1,012,142.80, 1,516,464.60 and 478,514.80 is: 716,945.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,142.80 : 1,516,464.60 = 478,514.80 : x
  2. Step 2: Convert to fraction form
    1,012,142.80/1,516,464.60 = 478,514.80/x
  3. Step 3: Cross multiply
    1,012,142.80x = 1,516,464.60 × 478,514.80
  4. Step 4: Simplify right side
    1,012,142.80x = 725,650,754,776.08
  5. Step 5: Solve for x
    x = 725,650,754,776.08/1,012,142.80
  6. Step 6: Final answer
    x = 716,945.03

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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.