Home / 916,997.44-1,265,399.68-509,075.52

Finding the Fourth Proportional to 916,997.44, 1,265,399.68 and 509,075.52

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Solution

The fourth proportional to 916,997.44, 1,265,399.68 and 509,075.52 is: 702,492.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,997.44 : 1,265,399.68 = 509,075.52 : x
  2. Step 2: Convert to fraction form
    916,997.44/1,265,399.68 = 509,075.52/x
  3. Step 3: Cross multiply
    916,997.44x = 1,265,399.68 × 509,075.52
  4. Step 4: Simplify right side
    916,997.44x = 644,184,000,103.83
  5. Step 5: Solve for x
    x = 644,184,000,103.83/916,997.44
  6. Step 6: Final answer
    x = 702,492.69

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1.5x scale

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.