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Finding the Fourth Proportional to 630,236.16, 869,875.20 and 362,119.68

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Solution

The fourth proportional to 630,236.16, 869,875.20 and 362,119.68 is: 499,810.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,236.16 : 869,875.20 = 362,119.68 : x
  2. Step 2: Convert to fraction form
    630,236.16/869,875.20 = 362,119.68/x
  3. Step 3: Cross multiply
    630,236.16x = 869,875.20 × 362,119.68
  4. Step 4: Simplify right side
    630,236.16x = 314,998,929,063.94
  5. Step 5: Solve for x
    x = 314,998,929,063.94/630,236.16
  6. Step 6: Final answer
    x = 499,810.94

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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.