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Finding the Fourth Proportional to 711,031.02, 980,638.22 and 507,016.73

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Solution

The fourth proportional to 711,031.02, 980,638.22 and 507,016.73 is: 699,266.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,031.02 : 980,638.22 = 507,016.73 : x
  2. Step 2: Convert to fraction form
    711,031.02/980,638.22 = 507,016.73/x
  3. Step 3: Cross multiply
    711,031.02x = 980,638.22 × 507,016.73
  4. Step 4: Simplify right side
    711,031.02x = 497,199,983,617.42
  5. Step 5: Solve for x
    x = 497,199,983,617.42/711,031.02
  6. Step 6: Final answer
    x = 699,266.23

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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.