Home / 771,095.88-1,154,631.78-620,513.64

Finding the Fourth Proportional to 771,095.88, 1,154,631.78 and 620,513.64

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Solution

The fourth proportional to 771,095.88, 1,154,631.78 and 620,513.64 is: 929,151.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,095.88 : 1,154,631.78 = 620,513.64 : x
  2. Step 2: Convert to fraction form
    771,095.88/1,154,631.78 = 620,513.64/x
  3. Step 3: Cross multiply
    771,095.88x = 1,154,631.78 × 620,513.64
  4. Step 4: Simplify right side
    771,095.88x = 716,464,768,667.48
  5. Step 5: Solve for x
    x = 716,464,768,667.48/771,095.88
  6. Step 6: Final answer
    x = 929,151.34

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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.