Home / 1,230,095.31-1,845,135.15-420,088.91

Finding the Fourth Proportional to 1,230,095.31, 1,845,135.15 and 420,088.91

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Solution

The fourth proportional to 1,230,095.31, 1,845,135.15 and 420,088.91 is: 630,130.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,095.31 : 1,845,135.15 = 420,088.91 : x
  2. Step 2: Convert to fraction form
    1,230,095.31/1,845,135.15 = 420,088.91/x
  3. Step 3: Cross multiply
    1,230,095.31x = 1,845,135.15 × 420,088.91
  4. Step 4: Simplify right side
    1,230,095.31x = 775,120,808,354.62
  5. Step 5: Solve for x
    x = 775,120,808,354.62/1,230,095.31
  6. Step 6: Final answer
    x = 630,130.69

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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.