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Finding the Fourth Proportional to 604,999.20, 907,498.80 and 290,071.20

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Solution

The fourth proportional to 604,999.20, 907,498.80 and 290,071.20 is: 435,106.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,999.20 : 907,498.80 = 290,071.20 : x
  2. Step 2: Convert to fraction form
    604,999.20/907,498.80 = 290,071.20/x
  3. Step 3: Cross multiply
    604,999.20x = 907,498.80 × 290,071.20
  4. Step 4: Simplify right side
    604,999.20x = 263,239,265,914.56
  5. Step 5: Solve for x
    x = 263,239,265,914.56/604,999.20
  6. Step 6: Final answer
    x = 435,106.80

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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.