Home / 874,837.16-1,312,255.76-209,989.16

Finding the Fourth Proportional to 874,837.16, 1,312,255.76 and 209,989.16

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Solution

The fourth proportional to 874,837.16, 1,312,255.76 and 209,989.16 is: 314,983.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,837.16 : 1,312,255.76 = 209,989.16 : x
  2. Step 2: Convert to fraction form
    874,837.16/1,312,255.76 = 209,989.16/x
  3. Step 3: Cross multiply
    874,837.16x = 1,312,255.76 × 209,989.16
  4. Step 4: Simplify right side
    874,837.16x = 275,559,484,747.56
  5. Step 5: Solve for x
    x = 275,559,484,747.56/874,837.16
  6. Step 6: Final answer
    x = 314,983.74

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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.