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Finding the Fourth Proportional to 567,484.98, 783,109.26 and 309,356.64

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Solution

The fourth proportional to 567,484.98, 783,109.26 and 309,356.64 is: 426,901.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,484.98 : 783,109.26 = 309,356.64 : x
  2. Step 2: Convert to fraction form
    567,484.98/783,109.26 = 309,356.64/x
  3. Step 3: Cross multiply
    567,484.98x = 783,109.26 × 309,356.64
  4. Step 4: Simplify right side
    567,484.98x = 242,260,049,426.49
  5. Step 5: Solve for x
    x = 242,260,049,426.49/567,484.98
  6. Step 6: Final answer
    x = 426,901.25

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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.