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Finding the Fourth Proportional to 849,830.80, 1,274,803.80 and 288,907.60

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Solution

The fourth proportional to 849,830.80, 1,274,803.80 and 288,907.60 is: 433,380.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,830.80 : 1,274,803.80 = 288,907.60 : x
  2. Step 2: Convert to fraction form
    849,830.80/1,274,803.80 = 288,907.60/x
  3. Step 3: Cross multiply
    849,830.80x = 1,274,803.80 × 288,907.60
  4. Step 4: Simplify right side
    849,830.80x = 368,300,506,328.88
  5. Step 5: Solve for x
    x = 368,300,506,328.88/849,830.80
  6. Step 6: Final answer
    x = 433,380.98

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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.