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Finding the Fourth Proportional to 564,460.81, 778,915.25 and 322,753.57

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Solution

The fourth proportional to 564,460.81, 778,915.25 and 322,753.57 is: 445,376.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,460.81 : 778,915.25 = 322,753.57 : x
  2. Step 2: Convert to fraction form
    564,460.81/778,915.25 = 322,753.57/x
  3. Step 3: Cross multiply
    564,460.81x = 778,915.25 × 322,753.57
  4. Step 4: Simplify right side
    564,460.81x = 251,397,676,051.18
  5. Step 5: Solve for x
    x = 251,397,676,051.18/564,460.81
  6. Step 6: Final answer
    x = 445,376.67

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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.