Home / 1,478,442.40-2,218,700.40-947,255.20

Finding the Fourth Proportional to 1,478,442.40, 2,218,700.40 and 947,255.20

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Solution

The fourth proportional to 1,478,442.40, 2,218,700.40 and 947,255.20 is: 1,421,547.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,442.40 : 2,218,700.40 = 947,255.20 : x
  2. Step 2: Convert to fraction form
    1,478,442.40/2,218,700.40 = 947,255.20/x
  3. Step 3: Cross multiply
    1,478,442.40x = 2,218,700.40 × 947,255.20
  4. Step 4: Simplify right side
    1,478,442.40x = 2,101,675,491,142.08
  5. Step 5: Solve for x
    x = 2,101,675,491,142.08/1,478,442.40
  6. Step 6: Final answer
    x = 1,421,547.09

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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.