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Finding the Fourth Proportional to 867,310.40, 1,301,062.80 and 268,266.80

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Solution

The fourth proportional to 867,310.40, 1,301,062.80 and 268,266.80 is: 402,430.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,310.40 : 1,301,062.80 = 268,266.80 : x
  2. Step 2: Convert to fraction form
    867,310.40/1,301,062.80 = 268,266.80/x
  3. Step 3: Cross multiply
    867,310.40x = 1,301,062.80 × 268,266.80
  4. Step 4: Simplify right side
    867,310.40x = 349,031,953,955.04
  5. Step 5: Solve for x
    x = 349,031,953,955.04/867,310.40
  6. Step 6: Final answer
    x = 402,430.26

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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.