Home / 1,210,486.86-1,817,108.10-612,123.66

Finding the Fourth Proportional to 1,210,486.86, 1,817,108.10 and 612,123.66

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Solution

The fourth proportional to 1,210,486.86, 1,817,108.10 and 612,123.66 is: 918,882.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,486.86 : 1,817,108.10 = 612,123.66 : x
  2. Step 2: Convert to fraction form
    1,210,486.86/1,817,108.10 = 612,123.66/x
  3. Step 3: Cross multiply
    1,210,486.86x = 1,817,108.10 × 612,123.66
  4. Step 4: Simplify right side
    1,210,486.86x = 1,112,294,860,787.65
  5. Step 5: Solve for x
    x = 1,112,294,860,787.65/1,210,486.86
  6. Step 6: Final answer
    x = 918,882.23

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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.