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Finding the Fourth Proportional to 1,282,461.22, 1,923,792 and 429,536.08

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Solution

The fourth proportional to 1,282,461.22, 1,923,792 and 429,536.08 is: 644,337.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,461.22 : 1,923,792 = 429,536.08 : x
  2. Step 2: Convert to fraction form
    1,282,461.22/1,923,792 = 429,536.08/x
  3. Step 3: Cross multiply
    1,282,461.22x = 1,923,792 × 429,536.08
  4. Step 4: Simplify right side
    1,282,461.22x = 826,338,074,415.36
  5. Step 5: Solve for x
    x = 826,338,074,415.36/1,282,461.22
  6. Step 6: Final answer
    x = 644,337.67

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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.