Home / 830,920.12-1,246,547.84-262,390.02

Finding the Fourth Proportional to 830,920.12, 1,246,547.84 and 262,390.02

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Solution

The fourth proportional to 830,920.12, 1,246,547.84 and 262,390.02 is: 393,637.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,920.12 : 1,246,547.84 = 262,390.02 : x
  2. Step 2: Convert to fraction form
    830,920.12/1,246,547.84 = 262,390.02/x
  3. Step 3: Cross multiply
    830,920.12x = 1,246,547.84 × 262,390.02
  4. Step 4: Simplify right side
    830,920.12x = 327,081,712,668.56
  5. Step 5: Solve for x
    x = 327,081,712,668.56/830,920.12
  6. Step 6: Final answer
    x = 393,637.97

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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.