Home / 1,315,975.34-1,974,692.91-642,062.18

Finding the Fourth Proportional to 1,315,975.34, 1,974,692.91 and 642,062.18

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Solution

The fourth proportional to 1,315,975.34, 1,974,692.91 and 642,062.18 is: 963,449.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,975.34 : 1,974,692.91 = 642,062.18 : x
  2. Step 2: Convert to fraction form
    1,315,975.34/1,974,692.91 = 642,062.18/x
  3. Step 3: Cross multiply
    1,315,975.34x = 1,974,692.91 × 642,062.18
  4. Step 4: Simplify right side
    1,315,975.34x = 1,267,875,634,625.14
  5. Step 5: Solve for x
    x = 1,267,875,634,625.14/1,315,975.34
  6. Step 6: Final answer
    x = 963,449.39

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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.