Home / 1,026,870.84-1,539,271.08-428,162.58

Finding the Fourth Proportional to 1,026,870.84, 1,539,271.08 and 428,162.58

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Solution

The fourth proportional to 1,026,870.84, 1,539,271.08 and 428,162.58 is: 641,812.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,870.84 : 1,539,271.08 = 428,162.58 : x
  2. Step 2: Convert to fraction form
    1,026,870.84/1,539,271.08 = 428,162.58/x
  3. Step 3: Cross multiply
    1,026,870.84x = 1,539,271.08 × 428,162.58
  4. Step 4: Simplify right side
    1,026,870.84x = 659,058,276,932.19
  5. Step 5: Solve for x
    x = 659,058,276,932.19/1,026,870.84
  6. Step 6: Final answer
    x = 641,812.24

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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.