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Finding the Fourth Proportional to 604,934.60, 907,401.90 and 424,531.40

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Solution

The fourth proportional to 604,934.60, 907,401.90 and 424,531.40 is: 636,797.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,934.60 : 907,401.90 = 424,531.40 : x
  2. Step 2: Convert to fraction form
    604,934.60/907,401.90 = 424,531.40/x
  3. Step 3: Cross multiply
    604,934.60x = 907,401.90 × 424,531.40
  4. Step 4: Simplify right side
    604,934.60x = 385,220,598,969.66
  5. Step 5: Solve for x
    x = 385,220,598,969.66/604,934.60
  6. Step 6: Final answer
    x = 636,797.10

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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.