Home / 674,943.19-931,430.44-369,019.92

Finding the Fourth Proportional to 674,943.19, 931,430.44 and 369,019.92

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Solution

The fourth proportional to 674,943.19, 931,430.44 and 369,019.92 is: 509,252.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,943.19 : 931,430.44 = 369,019.92 : x
  2. Step 2: Convert to fraction form
    674,943.19/931,430.44 = 369,019.92/x
  3. Step 3: Cross multiply
    674,943.19x = 931,430.44 × 369,019.92
  4. Step 4: Simplify right side
    674,943.19x = 343,716,390,456.43
  5. Step 5: Solve for x
    x = 343,716,390,456.43/674,943.19
  6. Step 6: Final answer
    x = 509,252.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.