Home / 1,478,538.70-2,217,808.05-806,692.30

Finding the Fourth Proportional to 1,478,538.70, 2,217,808.05 and 806,692.30

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Solution

The fourth proportional to 1,478,538.70, 2,217,808.05 and 806,692.30 is: 1,210,038.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,538.70 : 2,217,808.05 = 806,692.30 : x
  2. Step 2: Convert to fraction form
    1,478,538.70/2,217,808.05 = 806,692.30/x
  3. Step 3: Cross multiply
    1,478,538.70x = 2,217,808.05 × 806,692.30
  4. Step 4: Simplify right side
    1,478,538.70x = 1,789,088,676,813.02
  5. Step 5: Solve for x
    x = 1,789,088,676,813.02/1,478,538.70
  6. Step 6: Final answer
    x = 1,210,038.45

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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.