Home / 707,986.59-977,028.20-402,069.34

Finding the Fourth Proportional to 707,986.59, 977,028.20 and 402,069.34

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Solution

The fourth proportional to 707,986.59, 977,028.20 and 402,069.34 is: 554,859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,986.59 : 977,028.20 = 402,069.34 : x
  2. Step 2: Convert to fraction form
    707,986.59/977,028.20 = 402,069.34/x
  3. Step 3: Cross multiply
    707,986.59x = 977,028.20 × 402,069.34
  4. Step 4: Simplify right side
    707,986.59x = 392,833,083,535.39
  5. Step 5: Solve for x
    x = 392,833,083,535.39/707,986.59
  6. Step 6: Final answer
    x = 554,859.50

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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.