Home / 879,575.15-1,213,944-557,315.30

Finding the Fourth Proportional to 879,575.15, 1,213,944 and 557,315.30

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Solution

The fourth proportional to 879,575.15, 1,213,944 and 557,315.30 is: 769,177.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,575.15 : 1,213,944 = 557,315.30 : x
  2. Step 2: Convert to fraction form
    879,575.15/1,213,944 = 557,315.30/x
  3. Step 3: Cross multiply
    879,575.15x = 1,213,944 × 557,315.30
  4. Step 4: Simplify right side
    879,575.15x = 676,549,564,543.20
  5. Step 5: Solve for x
    x = 676,549,564,543.20/879,575.15
  6. Step 6: Final answer
    x = 769,177.67

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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.