Home / 679,316.54-1,019,251.59-342,454.28

Finding the Fourth Proportional to 679,316.54, 1,019,251.59 and 342,454.28

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Solution

The fourth proportional to 679,316.54, 1,019,251.59 and 342,454.28 is: 513,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,316.54 : 1,019,251.59 = 342,454.28 : x
  2. Step 2: Convert to fraction form
    679,316.54/1,019,251.59 = 342,454.28/x
  3. Step 3: Cross multiply
    679,316.54x = 1,019,251.59 × 342,454.28
  4. Step 4: Simplify right side
    679,316.54x = 349,047,066,844.18
  5. Step 5: Solve for x
    x = 349,047,066,844.18/679,316.54
  6. Step 6: Final answer
    x = 513,820.95

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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.