Home / 835,378.21-1,252,866.52-385,667.12

Finding the Fourth Proportional to 835,378.21, 1,252,866.52 and 385,667.12

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Solution

The fourth proportional to 835,378.21, 1,252,866.52 and 385,667.12 is: 578,407.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,378.21 : 1,252,866.52 = 385,667.12 : x
  2. Step 2: Convert to fraction form
    835,378.21/1,252,866.52 = 385,667.12/x
  3. Step 3: Cross multiply
    835,378.21x = 1,252,866.52 × 385,667.12
  4. Step 4: Simplify right side
    835,378.21x = 483,189,426,127.07
  5. Step 5: Solve for x
    x = 483,189,426,127.07/835,378.21
  6. Step 6: Final answer
    x = 578,407.98

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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.