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Finding the Fourth Proportional to 607,355.70, 911,033.55 and 465,638.10

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Solution

The fourth proportional to 607,355.70, 911,033.55 and 465,638.10 is: 698,457.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,355.70 : 911,033.55 = 465,638.10 : x
  2. Step 2: Convert to fraction form
    607,355.70/911,033.55 = 465,638.10/x
  3. Step 3: Cross multiply
    607,355.70x = 911,033.55 × 465,638.10
  4. Step 4: Simplify right side
    607,355.70x = 424,211,931,258.26
  5. Step 5: Solve for x
    x = 424,211,931,258.26/607,355.70
  6. Step 6: Final answer
    x = 698,457.15

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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.