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Finding the Fourth Proportional to 622,075.40, 933,113.10 and 423,009.80

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Solution

The fourth proportional to 622,075.40, 933,113.10 and 423,009.80 is: 634,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,075.40 : 933,113.10 = 423,009.80 : x
  2. Step 2: Convert to fraction form
    622,075.40/933,113.10 = 423,009.80/x
  3. Step 3: Cross multiply
    622,075.40x = 933,113.10 × 423,009.80
  4. Step 4: Simplify right side
    622,075.40x = 394,715,985,808.38
  5. Step 5: Solve for x
    x = 394,715,985,808.38/622,075.40
  6. Step 6: Final answer
    x = 634,514.70

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Similar ratio
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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.