Home / 679,271.40-1,018,907.10-440,122.95

Finding the Fourth Proportional to 679,271.40, 1,018,907.10 and 440,122.95

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Solution

The fourth proportional to 679,271.40, 1,018,907.10 and 440,122.95 is: 660,184.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,271.40 : 1,018,907.10 = 440,122.95 : x
  2. Step 2: Convert to fraction form
    679,271.40/1,018,907.10 = 440,122.95/x
  3. Step 3: Cross multiply
    679,271.40x = 1,018,907.10 × 440,122.95
  4. Step 4: Simplify right side
    679,271.40x = 448,444,398,627.95
  5. Step 5: Solve for x
    x = 448,444,398,627.95/679,271.40
  6. Step 6: Final answer
    x = 660,184.43

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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.