Home / 1,087,207.80-1,630,811.70-989,230.20

Finding the Fourth Proportional to 1,087,207.80, 1,630,811.70 and 989,230.20

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Solution

The fourth proportional to 1,087,207.80, 1,630,811.70 and 989,230.20 is: 1,483,845.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,207.80 : 1,630,811.70 = 989,230.20 : x
  2. Step 2: Convert to fraction form
    1,087,207.80/1,630,811.70 = 989,230.20/x
  3. Step 3: Cross multiply
    1,087,207.80x = 1,630,811.70 × 989,230.20
  4. Step 4: Simplify right side
    1,087,207.80x = 1,613,248,184,153.34
  5. Step 5: Solve for x
    x = 1,613,248,184,153.34/1,087,207.80
  6. Step 6: Final answer
    x = 1,483,845.30

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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.