Home / 778,155.49-1,073,828.13-429,309.85

Finding the Fourth Proportional to 778,155.49, 1,073,828.13 and 429,309.85

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Solution

The fourth proportional to 778,155.49, 1,073,828.13 and 429,309.85 is: 592,433.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,155.49 : 1,073,828.13 = 429,309.85 : x
  2. Step 2: Convert to fraction form
    778,155.49/1,073,828.13 = 429,309.85/x
  3. Step 3: Cross multiply
    778,155.49x = 1,073,828.13 × 429,309.85
  4. Step 4: Simplify right side
    778,155.49x = 461,004,993,416.08
  5. Step 5: Solve for x
    x = 461,004,993,416.08/778,155.49
  6. Step 6: Final answer
    x = 592,433.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.