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Finding the Fourth Proportional to 626,657.40, 938,603.70 and 376,903.80

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Solution

The fourth proportional to 626,657.40, 938,603.70 and 376,903.80 is: 564,524.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,657.40 : 938,603.70 = 376,903.80 : x
  2. Step 2: Convert to fraction form
    626,657.40/938,603.70 = 376,903.80/x
  3. Step 3: Cross multiply
    626,657.40x = 938,603.70 × 376,903.80
  4. Step 4: Simplify right side
    626,657.40x = 353,763,301,224.06
  5. Step 5: Solve for x
    x = 353,763,301,224.06/626,657.40
  6. Step 6: Final answer
    x = 564,524.25

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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.