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Finding the Fourth Proportional to 525,681.49, 788,522.15 and 126,322.26

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Solution

The fourth proportional to 525,681.49, 788,522.15 and 126,322.26 is: 189,483.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,681.49 : 788,522.15 = 126,322.26 : x
  2. Step 2: Convert to fraction form
    525,681.49/788,522.15 = 126,322.26/x
  3. Step 3: Cross multiply
    525,681.49x = 788,522.15 × 126,322.26
  4. Step 4: Simplify right side
    525,681.49x = 99,607,899,416.45
  5. Step 5: Solve for x
    x = 99,607,899,416.45/525,681.49
  6. Step 6: Final answer
    x = 189,483.37

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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.