Home / 563,089.12-777,078.77-342,326.05

Finding the Fourth Proportional to 563,089.12, 777,078.77 and 342,326.05

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Solution

The fourth proportional to 563,089.12, 777,078.77 and 342,326.05 is: 472,419.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,089.12 : 777,078.77 = 342,326.05 : x
  2. Step 2: Convert to fraction form
    563,089.12/777,078.77 = 342,326.05/x
  3. Step 3: Cross multiply
    563,089.12x = 777,078.77 × 342,326.05
  4. Step 4: Simplify right side
    563,089.12x = 266,014,302,218.63
  5. Step 5: Solve for x
    x = 266,014,302,218.63/563,089.12
  6. Step 6: Final answer
    x = 472,419.54

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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.