Home / 857,783.01-1,286,300.71-289,058.12

Finding the Fourth Proportional to 857,783.01, 1,286,300.71 and 289,058.12

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Solution

The fourth proportional to 857,783.01, 1,286,300.71 and 289,058.12 is: 433,461.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,783.01 : 1,286,300.71 = 289,058.12 : x
  2. Step 2: Convert to fraction form
    857,783.01/1,286,300.71 = 289,058.12/x
  3. Step 3: Cross multiply
    857,783.01x = 1,286,300.71 × 289,058.12
  4. Step 4: Simplify right side
    857,783.01x = 371,815,662,114.76
  5. Step 5: Solve for x
    x = 371,815,662,114.76/857,783.01
  6. Step 6: Final answer
    x = 433,461.21

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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.