Home / 993,631.80-1,490,528.70-425,017.20

Finding the Fourth Proportional to 993,631.80, 1,490,528.70 and 425,017.20

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Solution

The fourth proportional to 993,631.80, 1,490,528.70 and 425,017.20 is: 637,560.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,631.80 : 1,490,528.70 = 425,017.20 : x
  2. Step 2: Convert to fraction form
    993,631.80/1,490,528.70 = 425,017.20/x
  3. Step 3: Cross multiply
    993,631.80x = 1,490,528.70 × 425,017.20
  4. Step 4: Simplify right side
    993,631.80x = 633,500,334,593.64
  5. Step 5: Solve for x
    x = 633,500,334,593.64/993,631.80
  6. Step 6: Final answer
    x = 637,560.45

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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.