Home / 756,904.20-1,133,801.10-520,513.80

Finding the Fourth Proportional to 756,904.20, 1,133,801.10 and 520,513.80

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Solution

The fourth proportional to 756,904.20, 1,133,801.10 and 520,513.80 is: 779,701.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,904.20 : 1,133,801.10 = 520,513.80 : x
  2. Step 2: Convert to fraction form
    756,904.20/1,133,801.10 = 520,513.80/x
  3. Step 3: Cross multiply
    756,904.20x = 1,133,801.10 × 520,513.80
  4. Step 4: Simplify right side
    756,904.20x = 590,159,119,005.18
  5. Step 5: Solve for x
    x = 590,159,119,005.18/756,904.20
  6. Step 6: Final answer
    x = 779,701.21

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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.