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Finding the Fourth Proportional to 710,303.82, 980,249.08 and 408,498.06

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Solution

The fourth proportional to 710,303.82, 980,249.08 and 408,498.06 is: 563,744.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,303.82 : 980,249.08 = 408,498.06 : x
  2. Step 2: Convert to fraction form
    710,303.82/980,249.08 = 408,498.06/x
  3. Step 3: Cross multiply
    710,303.82x = 980,249.08 × 408,498.06
  4. Step 4: Simplify right side
    710,303.82x = 400,429,847,496.79
  5. Step 5: Solve for x
    x = 400,429,847,496.79/710,303.82
  6. Step 6: Final answer
    x = 563,744.47

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Double scale
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Similar ratio
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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.