Home / 986,888.74-1,480,035.13-513,315.76

Finding the Fourth Proportional to 986,888.74, 1,480,035.13 and 513,315.76

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Solution

The fourth proportional to 986,888.74, 1,480,035.13 and 513,315.76 is: 769,818.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,888.74 : 1,480,035.13 = 513,315.76 : x
  2. Step 2: Convert to fraction form
    986,888.74/1,480,035.13 = 513,315.76/x
  3. Step 3: Cross multiply
    986,888.74x = 1,480,035.13 × 513,315.76
  4. Step 4: Simplify right side
    986,888.74x = 759,725,357,582.65
  5. Step 5: Solve for x
    x = 759,725,357,582.65/986,888.74
  6. Step 6: Final answer
    x = 769,818.65

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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.