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Finding the Fourth Proportional to 604,574.80, 907,445.40 and 305,393.20

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Solution

The fourth proportional to 604,574.80, 907,445.40 and 305,393.20 is: 458,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,574.80 : 907,445.40 = 305,393.20 : x
  2. Step 2: Convert to fraction form
    604,574.80/907,445.40 = 305,393.20/x
  3. Step 3: Cross multiply
    604,574.80x = 907,445.40 × 305,393.20
  4. Step 4: Simplify right side
    604,574.80x = 277,127,654,531.28
  5. Step 5: Solve for x
    x = 277,127,654,531.28/604,574.80
  6. Step 6: Final answer
    x = 458,384.40

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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.