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Finding the Fourth Proportional to 604,953.60, 907,430.40 and 394,828.80

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Solution

The fourth proportional to 604,953.60, 907,430.40 and 394,828.80 is: 592,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,953.60 : 907,430.40 = 394,828.80 : x
  2. Step 2: Convert to fraction form
    604,953.60/907,430.40 = 394,828.80/x
  3. Step 3: Cross multiply
    604,953.60x = 907,430.40 × 394,828.80
  4. Step 4: Simplify right side
    604,953.60x = 358,279,655,915.52
  5. Step 5: Solve for x
    x = 358,279,655,915.52/604,953.60
  6. Step 6: Final answer
    x = 592,243.20

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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.