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Finding the Fourth Proportional to 567,441.47, 783,062.86 and 309,312.76

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Solution

The fourth proportional to 567,441.47, 783,062.86 and 309,312.76 is: 426,848.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,441.47 : 783,062.86 = 309,312.76 : x
  2. Step 2: Convert to fraction form
    567,441.47/783,062.86 = 309,312.76/x
  3. Step 3: Cross multiply
    567,441.47x = 783,062.86 × 309,312.76
  4. Step 4: Simplify right side
    567,441.47x = 242,211,336,774.66
  5. Step 5: Solve for x
    x = 242,211,336,774.66/567,441.47
  6. Step 6: Final answer
    x = 426,848.14

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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.