Home / 989,033.75-1,364,866.58-536,325.11

Finding the Fourth Proportional to 989,033.75, 1,364,866.58 and 536,325.11

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Solution

The fourth proportional to 989,033.75, 1,364,866.58 and 536,325.11 is: 740,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,033.75 : 1,364,866.58 = 536,325.11 : x
  2. Step 2: Convert to fraction form
    989,033.75/1,364,866.58 = 536,325.11/x
  3. Step 3: Cross multiply
    989,033.75x = 1,364,866.58 × 536,325.11
  4. Step 4: Simplify right side
    989,033.75x = 732,012,218,653.82
  5. Step 5: Solve for x
    x = 732,012,218,653.82/989,033.75
  6. Step 6: Final answer
    x = 740,128.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.