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Finding the Fourth Proportional to 630,062.28, 869,507.76 and 358,141.56

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Solution

The fourth proportional to 630,062.28, 869,507.76 and 358,141.56 is: 494,247.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,062.28 : 869,507.76 = 358,141.56 : x
  2. Step 2: Convert to fraction form
    630,062.28/869,507.76 = 358,141.56/x
  3. Step 3: Cross multiply
    630,062.28x = 869,507.76 × 358,141.56
  4. Step 4: Simplify right side
    630,062.28x = 311,406,865,598.51
  5. Step 5: Solve for x
    x = 311,406,865,598.51/630,062.28
  6. Step 6: Final answer
    x = 494,247.75

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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.