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Finding the Fourth Proportional to 702,804.21, 969,868.51 and 380,514.25

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Solution

The fourth proportional to 702,804.21, 969,868.51 and 380,514.25 is: 525,108.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,804.21 : 969,868.51 = 380,514.25 : x
  2. Step 2: Convert to fraction form
    702,804.21/969,868.51 = 380,514.25/x
  3. Step 3: Cross multiply
    702,804.21x = 969,868.51 × 380,514.25
  4. Step 4: Simplify right side
    702,804.21x = 369,048,788,681.27
  5. Step 5: Solve for x
    x = 369,048,788,681.27/702,804.21
  6. Step 6: Final answer
    x = 525,108.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.