Home / 692,459.70-1,038,829.95-393,083.70

Finding the Fourth Proportional to 692,459.70, 1,038,829.95 and 393,083.70

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Solution

The fourth proportional to 692,459.70, 1,038,829.95 and 393,083.70 is: 589,705.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,459.70 : 1,038,829.95 = 393,083.70 : x
  2. Step 2: Convert to fraction form
    692,459.70/1,038,829.95 = 393,083.70/x
  3. Step 3: Cross multiply
    692,459.70x = 1,038,829.95 × 393,083.70
  4. Step 4: Simplify right side
    692,459.70x = 408,347,120,416.82
  5. Step 5: Solve for x
    x = 408,347,120,416.82/692,459.70
  6. Step 6: Final answer
    x = 589,705.25

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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.