Home / 915,519.88-1,263,548.18-507,712.42

Finding the Fourth Proportional to 915,519.88, 1,263,548.18 and 507,712.42

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Solution

The fourth proportional to 915,519.88, 1,263,548.18 and 507,712.42 is: 700,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,519.88 : 1,263,548.18 = 507,712.42 : x
  2. Step 2: Convert to fraction form
    915,519.88/1,263,548.18 = 507,712.42/x
  3. Step 3: Cross multiply
    915,519.88x = 1,263,548.18 × 507,712.42
  4. Step 4: Simplify right side
    915,519.88x = 641,519,104,254.40
  5. Step 5: Solve for x
    x = 641,519,104,254.40/915,519.88
  6. Step 6: Final answer
    x = 700,715.65

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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.