Home / 990,101.70-1,484,168.40-456,692.40

Finding the Fourth Proportional to 990,101.70, 1,484,168.40 and 456,692.40

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Solution

The fourth proportional to 990,101.70, 1,484,168.40 and 456,692.40 is: 684,584.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,101.70 : 1,484,168.40 = 456,692.40 : x
  2. Step 2: Convert to fraction form
    990,101.70/1,484,168.40 = 456,692.40/x
  3. Step 3: Cross multiply
    990,101.70x = 1,484,168.40 × 456,692.40
  4. Step 4: Simplify right side
    990,101.70x = 677,808,428,600.16
  5. Step 5: Solve for x
    x = 677,808,428,600.16/990,101.70
  6. Step 6: Final answer
    x = 684,584.65

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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.