Home / 1,152,421.74-1,590,492.48-643,229.82

Finding the Fourth Proportional to 1,152,421.74, 1,590,492.48 and 643,229.82

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Solution

The fourth proportional to 1,152,421.74, 1,590,492.48 and 643,229.82 is: 887,741.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,421.74 : 1,590,492.48 = 643,229.82 : x
  2. Step 2: Convert to fraction form
    1,152,421.74/1,590,492.48 = 643,229.82/x
  3. Step 3: Cross multiply
    1,152,421.74x = 1,590,492.48 × 643,229.82
  4. Step 4: Simplify right side
    1,152,421.74x = 1,023,052,191,621.75
  5. Step 5: Solve for x
    x = 1,023,052,191,621.75/1,152,421.74
  6. Step 6: Final answer
    x = 887,741.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.