Home / 719,287.49-1,078,586.98-339,891.59

Finding the Fourth Proportional to 719,287.49, 1,078,586.98 and 339,891.59

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Solution

The fourth proportional to 719,287.49, 1,078,586.98 and 339,891.59 is: 509,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,287.49 : 1,078,586.98 = 339,891.59 : x
  2. Step 2: Convert to fraction form
    719,287.49/1,078,586.98 = 339,891.59/x
  3. Step 3: Cross multiply
    719,287.49x = 1,078,586.98 × 339,891.59
  4. Step 4: Simplify right side
    719,287.49x = 366,602,636,493.11
  5. Step 5: Solve for x
    x = 366,602,636,493.11/719,287.49
  6. Step 6: Final answer
    x = 509,674.70

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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.