Home / 771,240.78-1,155,354.54-531,312.30

Finding the Fourth Proportional to 771,240.78, 1,155,354.54 and 531,312.30

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Solution

The fourth proportional to 771,240.78, 1,155,354.54 and 531,312.30 is: 795,930.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,240.78 : 1,155,354.54 = 531,312.30 : x
  2. Step 2: Convert to fraction form
    771,240.78/1,155,354.54 = 531,312.30/x
  3. Step 3: Cross multiply
    771,240.78x = 1,155,354.54 × 531,312.30
  4. Step 4: Simplify right side
    771,240.78x = 613,854,077,962.84
  5. Step 5: Solve for x
    x = 613,854,077,962.84/771,240.78
  6. Step 6: Final answer
    x = 795,930.52

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1.5x scale

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.