Home / 1,285,279.65-1,927,530.88-386,482.79

Finding the Fourth Proportional to 1,285,279.65, 1,927,530.88 and 386,482.79

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Solution

The fourth proportional to 1,285,279.65, 1,927,530.88 and 386,482.79 is: 579,607.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,279.65 : 1,927,530.88 = 386,482.79 : x
  2. Step 2: Convert to fraction form
    1,285,279.65/1,927,530.88 = 386,482.79/x
  3. Step 3: Cross multiply
    1,285,279.65x = 1,927,530.88 × 386,482.79
  4. Step 4: Simplify right side
    1,285,279.65x = 744,957,516,166.18
  5. Step 5: Solve for x
    x = 744,957,516,166.18/1,285,279.65
  6. Step 6: Final answer
    x = 579,607.34

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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.