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Finding the Fourth Proportional to 525,674.40, 788,511.60 and 315,549.60

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Solution

The fourth proportional to 525,674.40, 788,511.60 and 315,549.60 is: 473,324.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,674.40 : 788,511.60 = 315,549.60 : x
  2. Step 2: Convert to fraction form
    525,674.40/788,511.60 = 315,549.60/x
  3. Step 3: Cross multiply
    525,674.40x = 788,511.60 × 315,549.60
  4. Step 4: Simplify right side
    525,674.40x = 248,814,519,975.36
  5. Step 5: Solve for x
    x = 248,814,519,975.36/525,674.40
  6. Step 6: Final answer
    x = 473,324.40

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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.