Home / 1,408,547.10-2,112,820.65-411,275.10

Finding the Fourth Proportional to 1,408,547.10, 2,112,820.65 and 411,275.10

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Solution

The fourth proportional to 1,408,547.10, 2,112,820.65 and 411,275.10 is: 616,912.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,547.10 : 2,112,820.65 = 411,275.10 : x
  2. Step 2: Convert to fraction form
    1,408,547.10/2,112,820.65 = 411,275.10/x
  3. Step 3: Cross multiply
    1,408,547.10x = 2,112,820.65 × 411,275.10
  4. Step 4: Simplify right side
    1,408,547.10x = 868,950,524,110.82
  5. Step 5: Solve for x
    x = 868,950,524,110.82/1,408,547.10
  6. Step 6: Final answer
    x = 616,912.65

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Double scale
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Similar ratio
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1.5x scale

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.