Home / 788,493.40-1,182,740.10-489,311.80

Finding the Fourth Proportional to 788,493.40, 1,182,740.10 and 489,311.80

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Solution

The fourth proportional to 788,493.40, 1,182,740.10 and 489,311.80 is: 733,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,493.40 : 1,182,740.10 = 489,311.80 : x
  2. Step 2: Convert to fraction form
    788,493.40/1,182,740.10 = 489,311.80/x
  3. Step 3: Cross multiply
    788,493.40x = 1,182,740.10 × 489,311.80
  4. Step 4: Simplify right side
    788,493.40x = 578,728,687,263.18
  5. Step 5: Solve for x
    x = 578,728,687,263.18/788,493.40
  6. Step 6: Final answer
    x = 733,967.70

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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.