Home / 778,720.86-1,074,632.75-434,553.13

Finding the Fourth Proportional to 778,720.86, 1,074,632.75 and 434,553.13

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Solution

The fourth proportional to 778,720.86, 1,074,632.75 and 434,553.13 is: 599,682.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,720.86 : 1,074,632.75 = 434,553.13 : x
  2. Step 2: Convert to fraction form
    778,720.86/1,074,632.75 = 434,553.13/x
  3. Step 3: Cross multiply
    778,720.86x = 1,074,632.75 × 434,553.13
  4. Step 4: Simplify right side
    778,720.86x = 466,985,025,913.11
  5. Step 5: Solve for x
    x = 466,985,025,913.11/778,720.86
  6. Step 6: Final answer
    x = 599,682.18

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1.5x scale

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.