Home / 762,312.86-1,143,574.88-257,018.48

Finding the Fourth Proportional to 762,312.86, 1,143,574.88 and 257,018.48

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Solution

The fourth proportional to 762,312.86, 1,143,574.88 and 257,018.48 is: 385,563.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,312.86 : 1,143,574.88 = 257,018.48 : x
  2. Step 2: Convert to fraction form
    762,312.86/1,143,574.88 = 257,018.48/x
  3. Step 3: Cross multiply
    762,312.86x = 1,143,574.88 × 257,018.48
  4. Step 4: Simplify right side
    762,312.86x = 293,919,870,420.82
  5. Step 5: Solve for x
    x = 293,919,870,420.82/762,312.86
  6. Step 6: Final answer
    x = 385,563.31

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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.