Home / 387,300.06-534,325.14-285,567.30

Finding the Fourth Proportional to 387,300.06, 534,325.14 and 285,567.30

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Solution

The fourth proportional to 387,300.06, 534,325.14 and 285,567.30 is: 393,973.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,300.06 : 534,325.14 = 285,567.30 : x
  2. Step 2: Convert to fraction form
    387,300.06/534,325.14 = 285,567.30/x
  3. Step 3: Cross multiply
    387,300.06x = 534,325.14 × 285,567.30
  4. Step 4: Simplify right side
    387,300.06x = 152,585,787,551.92
  5. Step 5: Solve for x
    x = 152,585,787,551.92/387,300.06
  6. Step 6: Final answer
    x = 393,973.05

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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.