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Finding the Fourth Proportional to 858,888.16, 1,185,299.76 and 496,300

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Solution

The fourth proportional to 858,888.16, 1,185,299.76 and 496,300 is: 684,913.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,888.16 : 1,185,299.76 = 496,300 : x
  2. Step 2: Convert to fraction form
    858,888.16/1,185,299.76 = 496,300/x
  3. Step 3: Cross multiply
    858,888.16x = 1,185,299.76 × 496,300
  4. Step 4: Simplify right side
    858,888.16x = 588,264,270,888
  5. Step 5: Solve for x
    x = 588,264,270,888/858,888.16
  6. Step 6: Final answer
    x = 684,913.70

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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.