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Finding the Fourth Proportional to 577,270.40, 865,905.60 and 470,982.20

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Solution

The fourth proportional to 577,270.40, 865,905.60 and 470,982.20 is: 706,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,270.40 : 865,905.60 = 470,982.20 : x
  2. Step 2: Convert to fraction form
    577,270.40/865,905.60 = 470,982.20/x
  3. Step 3: Cross multiply
    577,270.40x = 865,905.60 × 470,982.20
  4. Step 4: Simplify right side
    577,270.40x = 407,826,124,480.32
  5. Step 5: Solve for x
    x = 407,826,124,480.32/577,270.40
  6. Step 6: Final answer
    x = 706,473.30

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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.