Home / 565,623.92-780,559.08-310,974.32

Finding the Fourth Proportional to 565,623.92, 780,559.08 and 310,974.32

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Solution

The fourth proportional to 565,623.92, 780,559.08 and 310,974.32 is: 429,143.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,623.92 : 780,559.08 = 310,974.32 : x
  2. Step 2: Convert to fraction form
    565,623.92/780,559.08 = 310,974.32/x
  3. Step 3: Cross multiply
    565,623.92x = 780,559.08 × 310,974.32
  4. Step 4: Simplify right side
    565,623.92x = 242,733,829,122.83
  5. Step 5: Solve for x
    x = 242,733,829,122.83/565,623.92
  6. Step 6: Final answer
    x = 429,143.50

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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.