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Finding the Fourth Proportional to 565,152.32, 779,870.88 and 310,514.24

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Solution

The fourth proportional to 565,152.32, 779,870.88 and 310,514.24 is: 428,488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,152.32 : 779,870.88 = 310,514.24 : x
  2. Step 2: Convert to fraction form
    565,152.32/779,870.88 = 310,514.24/x
  3. Step 3: Cross multiply
    565,152.32x = 779,870.88 × 310,514.24
  4. Step 4: Simplify right side
    565,152.32x = 242,161,013,601.33
  5. Step 5: Solve for x
    x = 242,161,013,601.33/565,152.32
  6. Step 6: Final answer
    x = 428,488.05

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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.