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Finding the Fourth Proportional to 611,580.90, 917,371.35 and 452,148.60

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Solution

The fourth proportional to 611,580.90, 917,371.35 and 452,148.60 is: 678,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,580.90 : 917,371.35 = 452,148.60 : x
  2. Step 2: Convert to fraction form
    611,580.90/917,371.35 = 452,148.60/x
  3. Step 3: Cross multiply
    611,580.90x = 917,371.35 × 452,148.60
  4. Step 4: Simplify right side
    611,580.90x = 414,788,171,582.61
  5. Step 5: Solve for x
    x = 414,788,171,582.61/611,580.90
  6. Step 6: Final answer
    x = 678,222.90

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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.