Home / 630,134.48-869,550.90-358,164.56

Finding the Fourth Proportional to 630,134.48, 869,550.90 and 358,164.56

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Solution

The fourth proportional to 630,134.48, 869,550.90 and 358,164.56 is: 494,247.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,134.48 : 869,550.90 = 358,164.56 : x
  2. Step 2: Convert to fraction form
    630,134.48/869,550.90 = 358,164.56/x
  3. Step 3: Cross multiply
    630,134.48x = 869,550.90 × 358,164.56
  4. Step 4: Simplify right side
    630,134.48x = 311,442,315,496.10
  5. Step 5: Solve for x
    x = 311,442,315,496.10/630,134.48
  6. Step 6: Final answer
    x = 494,247.38

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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.