Home / 908,710.20-1,363,065.30-820,136.70

Finding the Fourth Proportional to 908,710.20, 1,363,065.30 and 820,136.70

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Solution

The fourth proportional to 908,710.20, 1,363,065.30 and 820,136.70 is: 1,230,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,710.20 : 1,363,065.30 = 820,136.70 : x
  2. Step 2: Convert to fraction form
    908,710.20/1,363,065.30 = 820,136.70/x
  3. Step 3: Cross multiply
    908,710.20x = 1,363,065.30 × 820,136.70
  4. Step 4: Simplify right side
    908,710.20x = 1,117,899,877,026.51
  5. Step 5: Solve for x
    x = 1,117,899,877,026.51/908,710.20
  6. Step 6: Final answer
    x = 1,230,205.05

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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.