Home / 1,543,897.36-2,315,911-421,963.28

Finding the Fourth Proportional to 1,543,897.36, 2,315,911 and 421,963.28

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Solution

The fourth proportional to 1,543,897.36, 2,315,911 and 421,963.28 is: 632,962.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,897.36 : 2,315,911 = 421,963.28 : x
  2. Step 2: Convert to fraction form
    1,543,897.36/2,315,911 = 421,963.28/x
  3. Step 3: Cross multiply
    1,543,897.36x = 2,315,911 × 421,963.28
  4. Step 4: Simplify right side
    1,543,897.36x = 977,229,401,748.08
  5. Step 5: Solve for x
    x = 977,229,401,748.08/1,543,897.36
  6. Step 6: Final answer
    x = 632,962.67

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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.