Home / 985,142.65-1,477,254.67-511,700.89

Finding the Fourth Proportional to 985,142.65, 1,477,254.67 and 511,700.89

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Solution

The fourth proportional to 985,142.65, 1,477,254.67 and 511,700.89 is: 767,312.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,142.65 : 1,477,254.67 = 511,700.89 : x
  2. Step 2: Convert to fraction form
    985,142.65/1,477,254.67 = 511,700.89/x
  3. Step 3: Cross multiply
    985,142.65x = 1,477,254.67 × 511,700.89
  4. Step 4: Simplify right side
    985,142.65x = 755,912,529,395.66
  5. Step 5: Solve for x
    x = 755,912,529,395.66/985,142.65
  6. Step 6: Final answer
    x = 767,312.76

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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.