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Finding the Fourth Proportional to 706,380.40, 974,806.08 and 384,090.24

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Solution

The fourth proportional to 706,380.40, 974,806.08 and 384,090.24 is: 530,045.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,380.40 : 974,806.08 = 384,090.24 : x
  2. Step 2: Convert to fraction form
    706,380.40/974,806.08 = 384,090.24/x
  3. Step 3: Cross multiply
    706,380.40x = 974,806.08 × 384,090.24
  4. Step 4: Simplify right side
    706,380.40x = 374,413,501,220.66
  5. Step 5: Solve for x
    x = 374,413,501,220.66/706,380.40
  6. Step 6: Final answer
    x = 530,045.14

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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.