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Finding the Fourth Proportional to 702,499.28, 969,449.16 and 384,547.28

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Solution

The fourth proportional to 702,499.28, 969,449.16 and 384,547.28 is: 530,675.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,499.28 : 969,449.16 = 384,547.28 : x
  2. Step 2: Convert to fraction form
    702,499.28/969,449.16 = 384,547.28/x
  3. Step 3: Cross multiply
    702,499.28x = 969,449.16 × 384,547.28
  4. Step 4: Simplify right side
    702,499.28x = 372,799,037,576.29
  5. Step 5: Solve for x
    x = 372,799,037,576.29/702,499.28
  6. Step 6: Final answer
    x = 530,675.33

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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.