Home / 877,108.20-1,210,396.29-489,929.01

Finding the Fourth Proportional to 877,108.20, 1,210,396.29 and 489,929.01

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Solution

The fourth proportional to 877,108.20, 1,210,396.29 and 489,929.01 is: 676,094.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,108.20 : 1,210,396.29 = 489,929.01 : x
  2. Step 2: Convert to fraction form
    877,108.20/1,210,396.29 = 489,929.01/x
  3. Step 3: Cross multiply
    877,108.20x = 1,210,396.29 × 489,929.01
  4. Step 4: Simplify right side
    877,108.20x = 593,008,251,069.08
  5. Step 5: Solve for x
    x = 593,008,251,069.08/877,108.20
  6. Step 6: Final answer
    x = 676,094.76

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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.