Home / 969,328.50-1,453,319.43-429,290.51

Finding the Fourth Proportional to 969,328.50, 1,453,319.43 and 429,290.51

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Solution

The fourth proportional to 969,328.50, 1,453,319.43 and 429,290.51 is: 643,637.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,328.50 : 1,453,319.43 = 429,290.51 : x
  2. Step 2: Convert to fraction form
    969,328.50/1,453,319.43 = 429,290.51/x
  3. Step 3: Cross multiply
    969,328.50x = 1,453,319.43 × 429,290.51
  4. Step 4: Simplify right side
    969,328.50x = 623,896,232,031.01
  5. Step 5: Solve for x
    x = 623,896,232,031.01/969,328.50
  6. Step 6: Final answer
    x = 643,637.56

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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.