Home / 1,557,501.53-2,148,945.90-912,575.21

Finding the Fourth Proportional to 1,557,501.53, 2,148,945.90 and 912,575.21

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Solution

The fourth proportional to 1,557,501.53, 2,148,945.90 and 912,575.21 is: 1,259,115.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,501.53 : 2,148,945.90 = 912,575.21 : x
  2. Step 2: Convert to fraction form
    1,557,501.53/2,148,945.90 = 912,575.21/x
  3. Step 3: Cross multiply
    1,557,501.53x = 2,148,945.90 × 912,575.21
  4. Step 4: Simplify right side
    1,557,501.53x = 1,961,074,755,971.14
  5. Step 5: Solve for x
    x = 1,961,074,755,971.14/1,557,501.53
  6. Step 6: Final answer
    x = 1,259,115.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.