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Finding the Fourth Proportional to 567,275.88, 782,840.88 and 309,152.94

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Solution

The fourth proportional to 567,275.88, 782,840.88 and 309,152.94 is: 426,631.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,275.88 : 782,840.88 = 309,152.94 : x
  2. Step 2: Convert to fraction form
    567,275.88/782,840.88 = 309,152.94/x
  3. Step 3: Cross multiply
    567,275.88x = 782,840.88 × 309,152.94
  4. Step 4: Simplify right side
    567,275.88x = 242,017,559,604.19
  5. Step 5: Solve for x
    x = 242,017,559,604.19/567,275.88
  6. Step 6: Final answer
    x = 426,631.15

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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.