Home / 990,868.68-1,486,303.00-280,902.87

Finding the Fourth Proportional to 990,868.68, 1,486,303.00 and 280,902.87

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Solution

The fourth proportional to 990,868.68, 1,486,303.00 and 280,902.87 is: 421,354.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,868.68 : 1,486,303.00 = 280,902.87 : x
  2. Step 2: Convert to fraction form
    990,868.68/1,486,303.00 = 280,902.87/x
  3. Step 3: Cross multiply
    990,868.68x = 1,486,303.00 × 280,902.87
  4. Step 4: Simplify right side
    990,868.68x = 417,506,777,687.35
  5. Step 5: Solve for x
    x = 417,506,777,687.35/990,868.68
  6. Step 6: Final answer
    x = 421,354.30

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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.