Home / 1,432,421.70-1,976,079.28-858,465.42

Finding the Fourth Proportional to 1,432,421.70, 1,976,079.28 and 858,465.42

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Solution

The fourth proportional to 1,432,421.70, 1,976,079.28 and 858,465.42 is: 1,184,285.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,421.70 : 1,976,079.28 = 858,465.42 : x
  2. Step 2: Convert to fraction form
    1,432,421.70/1,976,079.28 = 858,465.42/x
  3. Step 3: Cross multiply
    1,432,421.70x = 1,976,079.28 × 858,465.42
  4. Step 4: Simplify right side
    1,432,421.70x = 1,696,395,729,058.50
  5. Step 5: Solve for x
    x = 1,696,395,729,058.50/1,432,421.70
  6. Step 6: Final answer
    x = 1,184,285.14

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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.