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Finding the Fourth Proportional to 897,902.80, 1,348,409.40 and 477,998.80

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Solution

The fourth proportional to 897,902.80, 1,348,409.40 and 477,998.80 is: 717,826.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,902.80 : 1,348,409.40 = 477,998.80 : x
  2. Step 2: Convert to fraction form
    897,902.80/1,348,409.40 = 477,998.80/x
  3. Step 3: Cross multiply
    897,902.80x = 1,348,409.40 × 477,998.80
  4. Step 4: Simplify right side
    897,902.80x = 644,538,075,108.72
  5. Step 5: Solve for x
    x = 644,538,075,108.72/897,902.80
  6. Step 6: Final answer
    x = 717,826.11

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Double scale
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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.