Home / 778,745.40-1,074,666.72-434,577.76

Finding the Fourth Proportional to 778,745.40, 1,074,666.72 and 434,577.76

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Solution

The fourth proportional to 778,745.40, 1,074,666.72 and 434,577.76 is: 599,716.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,745.40 : 1,074,666.72 = 434,577.76 : x
  2. Step 2: Convert to fraction form
    778,745.40/1,074,666.72 = 434,577.76/x
  3. Step 3: Cross multiply
    778,745.40x = 1,074,666.72 × 434,577.76
  4. Step 4: Simplify right side
    778,745.40x = 467,026,255,924.15
  5. Step 5: Solve for x
    x = 467,026,255,924.15/778,745.40
  6. Step 6: Final answer
    x = 599,716.23

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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.