Home / 979,690.65-1,470,095.63-380,573.84

Finding the Fourth Proportional to 979,690.65, 1,470,095.63 and 380,573.84

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Solution

The fourth proportional to 979,690.65, 1,470,095.63 and 380,573.84 is: 571,078.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,690.65 : 1,470,095.63 = 380,573.84 : x
  2. Step 2: Convert to fraction form
    979,690.65/1,470,095.63 = 380,573.84/x
  3. Step 3: Cross multiply
    979,690.65x = 1,470,095.63 × 380,573.84
  4. Step 4: Simplify right side
    979,690.65x = 559,479,942,275.84
  5. Step 5: Solve for x
    x = 559,479,942,275.84/979,690.65
  6. Step 6: Final answer
    x = 571,078.17

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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.