Home / 559,942.47-839,916.88-139,218.35

Finding the Fourth Proportional to 559,942.47, 839,916.88 and 139,218.35

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Solution

The fourth proportional to 559,942.47, 839,916.88 and 139,218.35 is: 208,828.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,942.47 : 839,916.88 = 139,218.35 : x
  2. Step 2: Convert to fraction form
    559,942.47/839,916.88 = 139,218.35/x
  3. Step 3: Cross multiply
    559,942.47x = 839,916.88 × 139,218.35
  4. Step 4: Simplify right side
    559,942.47x = 116,931,837,623.12
  5. Step 5: Solve for x
    x = 116,931,837,623.12/559,942.47
  6. Step 6: Final answer
    x = 208,828.31

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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.