Home / 749,289.81-1,034,017.85-405,123.33

Finding the Fourth Proportional to 749,289.81, 1,034,017.85 and 405,123.33

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Solution

The fourth proportional to 749,289.81, 1,034,017.85 and 405,123.33 is: 559,069.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,289.81 : 1,034,017.85 = 405,123.33 : x
  2. Step 2: Convert to fraction form
    749,289.81/1,034,017.85 = 405,123.33/x
  3. Step 3: Cross multiply
    749,289.81x = 1,034,017.85 × 405,123.33
  4. Step 4: Simplify right side
    749,289.81x = 418,904,752,645.82
  5. Step 5: Solve for x
    x = 418,904,752,645.82/749,289.81
  6. Step 6: Final answer
    x = 559,069.06

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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.