Home / 745,009.89-1,117,525.54-212,530.98

Finding the Fourth Proportional to 745,009.89, 1,117,525.54 and 212,530.98

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Solution

The fourth proportional to 745,009.89, 1,117,525.54 and 212,530.98 is: 318,799.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,009.89 : 1,117,525.54 = 212,530.98 : x
  2. Step 2: Convert to fraction form
    745,009.89/1,117,525.54 = 212,530.98/x
  3. Step 3: Cross multiply
    745,009.89x = 1,117,525.54 × 212,530.98
  4. Step 4: Simplify right side
    745,009.89x = 237,508,798,191.23
  5. Step 5: Solve for x
    x = 237,508,798,191.23/745,009.89
  6. Step 6: Final answer
    x = 318,799.52

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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.