Home / 778,860.70-1,168,291.05-405,612.70

Finding the Fourth Proportional to 778,860.70, 1,168,291.05 and 405,612.70

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Solution

The fourth proportional to 778,860.70, 1,168,291.05 and 405,612.70 is: 608,419.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,860.70 : 1,168,291.05 = 405,612.70 : x
  2. Step 2: Convert to fraction form
    778,860.70/1,168,291.05 = 405,612.70/x
  3. Step 3: Cross multiply
    778,860.70x = 1,168,291.05 × 405,612.70
  4. Step 4: Simplify right side
    778,860.70x = 473,873,687,176.34
  5. Step 5: Solve for x
    x = 473,873,687,176.34/778,860.70
  6. Step 6: Final answer
    x = 608,419.05

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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.