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Finding the Fourth Proportional to 489,010.80, 732,641.40 and 301,803.60

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Solution

The fourth proportional to 489,010.80, 732,641.40 and 301,803.60 is: 452,165.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,010.80 : 732,641.40 = 301,803.60 : x
  2. Step 2: Convert to fraction form
    489,010.80/732,641.40 = 301,803.60/x
  3. Step 3: Cross multiply
    489,010.80x = 732,641.40 × 301,803.60
  4. Step 4: Simplify right side
    489,010.80x = 221,113,812,029.04
  5. Step 5: Solve for x
    x = 221,113,812,029.04/489,010.80
  6. Step 6: Final answer
    x = 452,165.50

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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.