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Finding the Fourth Proportional to 674,522.46, 930,894.08 and 384,146.28

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Solution

The fourth proportional to 674,522.46, 930,894.08 and 384,146.28 is: 530,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,522.46 : 930,894.08 = 384,146.28 : x
  2. Step 2: Convert to fraction form
    674,522.46/930,894.08 = 384,146.28/x
  3. Step 3: Cross multiply
    674,522.46x = 930,894.08 × 384,146.28
  4. Step 4: Simplify right side
    674,522.46x = 357,599,495,985.29
  5. Step 5: Solve for x
    x = 357,599,495,985.29/674,522.46
  6. Step 6: Final answer
    x = 530,152.10

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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.