Home / 632,428.98-872,740.52-345,946.56

Finding the Fourth Proportional to 632,428.98, 872,740.52 and 345,946.56

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Solution

The fourth proportional to 632,428.98, 872,740.52 and 345,946.56 is: 477,399.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,428.98 : 872,740.52 = 345,946.56 : x
  2. Step 2: Convert to fraction form
    632,428.98/872,740.52 = 345,946.56/x
  3. Step 3: Cross multiply
    632,428.98x = 872,740.52 × 345,946.56
  4. Step 4: Simplify right side
    632,428.98x = 301,921,580,666.61
  5. Step 5: Solve for x
    x = 301,921,580,666.61/632,428.98
  6. Step 6: Final answer
    x = 477,399.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.