Home / 709,448.40-1,064,302.20-288,766.80

Finding the Fourth Proportional to 709,448.40, 1,064,302.20 and 288,766.80

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Solution

The fourth proportional to 709,448.40, 1,064,302.20 and 288,766.80 is: 433,202.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,448.40 : 1,064,302.20 = 288,766.80 : x
  2. Step 2: Convert to fraction form
    709,448.40/1,064,302.20 = 288,766.80/x
  3. Step 3: Cross multiply
    709,448.40x = 1,064,302.20 × 288,766.80
  4. Step 4: Simplify right side
    709,448.40x = 307,335,140,526.96
  5. Step 5: Solve for x
    x = 307,335,140,526.96/709,448.40
  6. Step 6: Final answer
    x = 433,202.95

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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.