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Finding the Fourth Proportional to 604,927.20, 907,390.80 and 339,206.70

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Solution

The fourth proportional to 604,927.20, 907,390.80 and 339,206.70 is: 508,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,927.20 : 907,390.80 = 339,206.70 : x
  2. Step 2: Convert to fraction form
    604,927.20/907,390.80 = 339,206.70/x
  3. Step 3: Cross multiply
    604,927.20x = 907,390.80 × 339,206.70
  4. Step 4: Simplify right side
    604,927.20x = 307,793,038,878.36
  5. Step 5: Solve for x
    x = 307,793,038,878.36/604,927.20
  6. Step 6: Final answer
    x = 508,810.05

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Similar ratio
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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.