Home / 476,621.07-715,030.01-139,672.74

Finding the Fourth Proportional to 476,621.07, 715,030.01 and 139,672.74

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Solution

The fourth proportional to 476,621.07, 715,030.01 and 139,672.74 is: 209,537.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,621.07 : 715,030.01 = 139,672.74 : x
  2. Step 2: Convert to fraction form
    476,621.07/715,030.01 = 139,672.74/x
  3. Step 3: Cross multiply
    476,621.07x = 715,030.01 × 139,672.74
  4. Step 4: Simplify right side
    476,621.07x = 99,870,200,678.93
  5. Step 5: Solve for x
    x = 99,870,200,678.93/476,621.07
  6. Step 6: Final answer
    x = 209,537.95

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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.