Home / 476,690.55-657,837.71-258,903.48

Finding the Fourth Proportional to 476,690.55, 657,837.71 and 258,903.48

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Solution

The fourth proportional to 476,690.55, 657,837.71 and 258,903.48 is: 357,289.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,690.55 : 657,837.71 = 258,903.48 : x
  2. Step 2: Convert to fraction form
    476,690.55/657,837.71 = 258,903.48/x
  3. Step 3: Cross multiply
    476,690.55x = 657,837.71 × 258,903.48
  4. Step 4: Simplify right side
    476,690.55x = 170,316,471,099.71
  5. Step 5: Solve for x
    x = 170,316,471,099.71/476,690.55
  6. Step 6: Final answer
    x = 357,289.38

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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.