Home / 630,125.61-869,538.77-358,155.75

Finding the Fourth Proportional to 630,125.61, 869,538.77 and 358,155.75

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Solution

The fourth proportional to 630,125.61, 869,538.77 and 358,155.75 is: 494,235.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,125.61 : 869,538.77 = 358,155.75 : x
  2. Step 2: Convert to fraction form
    630,125.61/869,538.77 = 358,155.75/x
  3. Step 3: Cross multiply
    630,125.61x = 869,538.77 × 358,155.75
  4. Step 4: Simplify right side
    630,125.61x = 311,430,310,323.43
  5. Step 5: Solve for x
    x = 311,430,310,323.43/630,125.61
  6. Step 6: Final answer
    x = 494,235.28

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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.