Home / 2,565,210.90-3,845,278.35-1,215,000.30

Finding the Fourth Proportional to 2,565,210.90, 3,845,278.35 and 1,215,000.30

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Solution

The fourth proportional to 2,565,210.90, 3,845,278.35 and 1,215,000.30 is: 1,821,298.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,565,210.90 : 3,845,278.35 = 1,215,000.30 : x
  2. Step 2: Convert to fraction form
    2,565,210.90/3,845,278.35 = 1,215,000.30/x
  3. Step 3: Cross multiply
    2,565,210.90x = 3,845,278.35 × 1,215,000.30
  4. Step 4: Simplify right side
    2,565,210.90x = 4,672,014,348,833.51
  5. Step 5: Solve for x
    x = 4,672,014,348,833.51/2,565,210.90
  6. Step 6: Final answer
    x = 1,821,298.34

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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.