Home / 858,837.90-1,185,084.75-476,790.87

Finding the Fourth Proportional to 858,837.90, 1,185,084.75 and 476,790.87

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Solution

The fourth proportional to 858,837.90, 1,185,084.75 and 476,790.87 is: 657,909.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,837.90 : 1,185,084.75 = 476,790.87 : x
  2. Step 2: Convert to fraction form
    858,837.90/1,185,084.75 = 476,790.87/x
  3. Step 3: Cross multiply
    858,837.90x = 1,185,084.75 × 476,790.87
  4. Step 4: Simplify right side
    858,837.90x = 565,037,588,976.23
  5. Step 5: Solve for x
    x = 565,037,588,976.23/858,837.90
  6. Step 6: Final answer
    x = 657,909.47

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1.5x scale

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.