Home / 743,155.83-1,114,733.72-210,681.47

Finding the Fourth Proportional to 743,155.83, 1,114,733.72 and 210,681.47

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Solution

The fourth proportional to 743,155.83, 1,114,733.72 and 210,681.47 is: 316,022.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,155.83 : 1,114,733.72 = 210,681.47 : x
  2. Step 2: Convert to fraction form
    743,155.83/1,114,733.72 = 210,681.47/x
  3. Step 3: Cross multiply
    743,155.83x = 1,114,733.72 × 210,681.47
  4. Step 4: Simplify right side
    743,155.83x = 234,853,732,161.09
  5. Step 5: Solve for x
    x = 234,853,732,161.09/743,155.83
  6. Step 6: Final answer
    x = 316,022.19

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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.