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Finding the Fourth Proportional to 630,228.60, 869,789.03 and 358,337.25

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Solution

The fourth proportional to 630,228.60, 869,789.03 and 358,337.25 is: 494,547.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,228.60 : 869,789.03 = 358,337.25 : x
  2. Step 2: Convert to fraction form
    630,228.60/869,789.03 = 358,337.25/x
  3. Step 3: Cross multiply
    630,228.60x = 869,789.03 × 358,337.25
  4. Step 4: Simplify right side
    630,228.60x = 311,677,807,298.68
  5. Step 5: Solve for x
    x = 311,677,807,298.68/630,228.60
  6. Step 6: Final answer
    x = 494,547.23

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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.