Home / 1,435,547.20-2,153,199.30-438,275.20

Finding the Fourth Proportional to 1,435,547.20, 2,153,199.30 and 438,275.20

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Solution

The fourth proportional to 1,435,547.20, 2,153,199.30 and 438,275.20 is: 657,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,547.20 : 2,153,199.30 = 438,275.20 : x
  2. Step 2: Convert to fraction form
    1,435,547.20/2,153,199.30 = 438,275.20/x
  3. Step 3: Cross multiply
    1,435,547.20x = 2,153,199.30 × 438,275.20
  4. Step 4: Simplify right side
    1,435,547.20x = 943,693,853,847.36
  5. Step 5: Solve for x
    x = 943,693,853,847.36/1,435,547.20
  6. Step 6: Final answer
    x = 657,375.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.