Home / 874,837.13-1,312,255.69-209,989.13

Finding the Fourth Proportional to 874,837.13, 1,312,255.69 and 209,989.13

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Solution

The fourth proportional to 874,837.13, 1,312,255.69 and 209,989.13 is: 314,983.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,837.13 : 1,312,255.69 = 209,989.13 : x
  2. Step 2: Convert to fraction form
    874,837.13/1,312,255.69 = 209,989.13/x
  3. Step 3: Cross multiply
    874,837.13x = 1,312,255.69 × 209,989.13
  4. Step 4: Simplify right side
    874,837.13x = 275,559,423,594.40
  5. Step 5: Solve for x
    x = 275,559,423,594.40/874,837.13
  6. Step 6: Final answer
    x = 314,983.69

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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.