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Finding the Fourth Proportional to 646,862.70, 970,294.05 and 604,872.30

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Solution

The fourth proportional to 646,862.70, 970,294.05 and 604,872.30 is: 907,308.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,862.70 : 970,294.05 = 604,872.30 : x
  2. Step 2: Convert to fraction form
    646,862.70/970,294.05 = 604,872.30/x
  3. Step 3: Cross multiply
    646,862.70x = 970,294.05 × 604,872.30
  4. Step 4: Simplify right side
    646,862.70x = 586,903,993,699.82
  5. Step 5: Solve for x
    x = 586,903,993,699.82/646,862.70
  6. Step 6: Final answer
    x = 907,308.45

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Double scale
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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.