Home / 516,731.42-713,129.27-310,007.58

Finding the Fourth Proportional to 516,731.42, 713,129.27 and 310,007.58

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Solution

The fourth proportional to 516,731.42, 713,129.27 and 310,007.58 is: 427,834.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,731.42 : 713,129.27 = 310,007.58 : x
  2. Step 2: Convert to fraction form
    516,731.42/713,129.27 = 310,007.58/x
  3. Step 3: Cross multiply
    516,731.42x = 713,129.27 × 310,007.58
  4. Step 4: Simplify right side
    516,731.42x = 221,075,477,669.83
  5. Step 5: Solve for x
    x = 221,075,477,669.83/516,731.42
  6. Step 6: Final answer
    x = 427,834.41

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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.