Home / 939,574.65-1,409,356.50-340,395.87

Finding the Fourth Proportional to 939,574.65, 1,409,356.50 and 340,395.87

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Solution

The fourth proportional to 939,574.65, 1,409,356.50 and 340,395.87 is: 510,591.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,574.65 : 1,409,356.50 = 340,395.87 : x
  2. Step 2: Convert to fraction form
    939,574.65/1,409,356.50 = 340,395.87/x
  3. Step 3: Cross multiply
    939,574.65x = 1,409,356.50 × 340,395.87
  4. Step 4: Simplify right side
    939,574.65x = 479,739,131,957.66
  5. Step 5: Solve for x
    x = 479,739,131,957.66/939,574.65
  6. Step 6: Final answer
    x = 510,591.82

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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.