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Finding the Fourth Proportional to 567,005.40, 849,341.70 and 389,712.60

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Solution

The fourth proportional to 567,005.40, 849,341.70 and 389,712.60 is: 583,767.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,005.40 : 849,341.70 = 389,712.60 : x
  2. Step 2: Convert to fraction form
    567,005.40/849,341.70 = 389,712.60/x
  3. Step 3: Cross multiply
    567,005.40x = 849,341.70 × 389,712.60
  4. Step 4: Simplify right side
    567,005.40x = 330,999,162,195.42
  5. Step 5: Solve for x
    x = 330,999,162,195.42/567,005.40
  6. Step 6: Final answer
    x = 583,767.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.