Home / 477,030.17-715,396.41-139,986.74

Finding the Fourth Proportional to 477,030.17, 715,396.41 and 139,986.74

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Solution

The fourth proportional to 477,030.17, 715,396.41 and 139,986.74 is: 209,936.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,030.17 : 715,396.41 = 139,986.74 : x
  2. Step 2: Convert to fraction form
    477,030.17/715,396.41 = 139,986.74/x
  3. Step 3: Cross multiply
    477,030.17x = 715,396.41 × 139,986.74
  4. Step 4: Simplify right side
    477,030.17x = 100,146,007,666.62
  5. Step 5: Solve for x
    x = 100,146,007,666.62/477,030.17
  6. Step 6: Final answer
    x = 209,936.43

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1.5x scale

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.