Home / 563,290.20-777,340.80-308,641.32

Finding the Fourth Proportional to 563,290.20, 777,340.80 and 308,641.32

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Solution

The fourth proportional to 563,290.20, 777,340.80 and 308,641.32 is: 425,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,290.20 : 777,340.80 = 308,641.32 : x
  2. Step 2: Convert to fraction form
    563,290.20/777,340.80 = 308,641.32/x
  3. Step 3: Cross multiply
    563,290.20x = 777,340.80 × 308,641.32
  4. Step 4: Simplify right side
    563,290.20x = 239,919,490,601.86
  5. Step 5: Solve for x
    x = 239,919,490,601.86/563,290.20
  6. Step 6: Final answer
    x = 425,925.20

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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.