Home / 1,210,577.30-1,815,428.55-490,616.90

Finding the Fourth Proportional to 1,210,577.30, 1,815,428.55 and 490,616.90

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Solution

The fourth proportional to 1,210,577.30, 1,815,428.55 and 490,616.90 is: 735,748.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,577.30 : 1,815,428.55 = 490,616.90 : x
  2. Step 2: Convert to fraction form
    1,210,577.30/1,815,428.55 = 490,616.90/x
  3. Step 3: Cross multiply
    1,210,577.30x = 1,815,428.55 × 490,616.90
  4. Step 4: Simplify right side
    1,210,577.30x = 890,679,927,372.50
  5. Step 5: Solve for x
    x = 890,679,927,372.50/1,210,577.30
  6. Step 6: Final answer
    x = 735,748.08

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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.