Home / 687,771.80-1,031,657.70-651,030.20

Finding the Fourth Proportional to 687,771.80, 1,031,657.70 and 651,030.20

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Solution

The fourth proportional to 687,771.80, 1,031,657.70 and 651,030.20 is: 976,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,771.80 : 1,031,657.70 = 651,030.20 : x
  2. Step 2: Convert to fraction form
    687,771.80/1,031,657.70 = 651,030.20/x
  3. Step 3: Cross multiply
    687,771.80x = 1,031,657.70 × 651,030.20
  4. Step 4: Simplify right side
    687,771.80x = 671,640,318,762.54
  5. Step 5: Solve for x
    x = 671,640,318,762.54/687,771.80
  6. Step 6: Final answer
    x = 976,545.30

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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.