Home / 712,919.49-1,069,514.10-286,488.51

Finding the Fourth Proportional to 712,919.49, 1,069,514.10 and 286,488.51

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Solution

The fourth proportional to 712,919.49, 1,069,514.10 and 286,488.51 is: 429,786.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,919.49 : 1,069,514.10 = 286,488.51 : x
  2. Step 2: Convert to fraction form
    712,919.49/1,069,514.10 = 286,488.51/x
  3. Step 3: Cross multiply
    712,919.49x = 1,069,514.10 × 286,488.51
  4. Step 4: Simplify right side
    712,919.49x = 306,403,500,932.99
  5. Step 5: Solve for x
    x = 306,403,500,932.99/712,919.49
  6. Step 6: Final answer
    x = 429,786.96

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Double scale
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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.