Home / 679,411.19-1,019,338.22-342,425.93

Finding the Fourth Proportional to 679,411.19, 1,019,338.22 and 342,425.93

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Solution

The fourth proportional to 679,411.19, 1,019,338.22 and 342,425.93 is: 513,750.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,411.19 : 1,019,338.22 = 342,425.93 : x
  2. Step 2: Convert to fraction form
    679,411.19/1,019,338.22 = 342,425.93/x
  3. Step 3: Cross multiply
    679,411.19x = 1,019,338.22 × 342,425.93
  4. Step 4: Simplify right side
    679,411.19x = 349,047,839,461.20
  5. Step 5: Solve for x
    x = 349,047,839,461.20/679,411.19
  6. Step 6: Final answer
    x = 513,750.50

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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.