Home / 1,425,547.74-2,138,640.75-478,892.64

Finding the Fourth Proportional to 1,425,547.74, 2,138,640.75 and 478,892.64

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Solution

The fourth proportional to 1,425,547.74, 2,138,640.75 and 478,892.64 is: 718,446.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,547.74 : 2,138,640.75 = 478,892.64 : x
  2. Step 2: Convert to fraction form
    1,425,547.74/2,138,640.75 = 478,892.64/x
  3. Step 3: Cross multiply
    1,425,547.74x = 2,138,640.75 × 478,892.64
  4. Step 4: Simplify right side
    1,425,547.74x = 1,024,179,314,779.08
  5. Step 5: Solve for x
    x = 1,024,179,314,779.08/1,425,547.74
  6. Step 6: Final answer
    x = 718,446.17

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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.