Home / 770,202.40-1,155,692.40-349,209.76

Finding the Fourth Proportional to 770,202.40, 1,155,692.40 and 349,209.76

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Solution

The fourth proportional to 770,202.40, 1,155,692.40 and 349,209.76 is: 523,990.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,202.40 : 1,155,692.40 = 349,209.76 : x
  2. Step 2: Convert to fraction form
    770,202.40/1,155,692.40 = 349,209.76/x
  3. Step 3: Cross multiply
    770,202.40x = 1,155,692.40 × 349,209.76
  4. Step 4: Simplify right side
    770,202.40x = 403,579,065,637.82
  5. Step 5: Solve for x
    x = 403,579,065,637.82/770,202.40
  6. Step 6: Final answer
    x = 523,990.92

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1.5x scale

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.