Home / 630,135.48-869,552.28-358,165.56

Finding the Fourth Proportional to 630,135.48, 869,552.28 and 358,165.56

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Solution

The fourth proportional to 630,135.48, 869,552.28 and 358,165.56 is: 494,248.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,135.48 : 869,552.28 = 358,165.56 : x
  2. Step 2: Convert to fraction form
    630,135.48/869,552.28 = 358,165.56/x
  3. Step 3: Cross multiply
    630,135.48x = 869,552.28 × 358,165.56
  4. Step 4: Simplify right side
    630,135.48x = 311,443,679,315.48
  5. Step 5: Solve for x
    x = 311,443,679,315.48/630,135.48
  6. Step 6: Final answer
    x = 494,248.76

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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.