Home / 2,478,483.64-3,420,029.80-1,390,528.92

Finding the Fourth Proportional to 2,478,483.64, 3,420,029.80 and 1,390,528.92

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Solution

The fourth proportional to 2,478,483.64, 3,420,029.80 and 1,390,528.92 is: 1,918,774.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478,483.64 : 3,420,029.80 = 1,390,528.92 : x
  2. Step 2: Convert to fraction form
    2,478,483.64/3,420,029.80 = 1,390,528.92/x
  3. Step 3: Cross multiply
    2,478,483.64x = 3,420,029.80 × 1,390,528.92
  4. Step 4: Simplify right side
    2,478,483.64x = 4,755,650,344,161.82
  5. Step 5: Solve for x
    x = 4,755,650,344,161.82/2,478,483.64
  6. Step 6: Final answer
    x = 1,918,774.15

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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.