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Finding the Fourth Proportional to 566,503.16, 781,774.32 and 308,381.12

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Solution

The fourth proportional to 566,503.16, 781,774.32 and 308,381.12 is: 425,565.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,503.16 : 781,774.32 = 308,381.12 : x
  2. Step 2: Convert to fraction form
    566,503.16/781,774.32 = 308,381.12/x
  3. Step 3: Cross multiply
    566,503.16x = 781,774.32 × 308,381.12
  4. Step 4: Simplify right side
    566,503.16x = 241,084,440,388.84
  5. Step 5: Solve for x
    x = 241,084,440,388.84/566,503.16
  6. Step 6: Final answer
    x = 425,565.92

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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.