Home / 434,543.40-651,815.10-308,572.20

Finding the Fourth Proportional to 434,543.40, 651,815.10 and 308,572.20

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Solution

The fourth proportional to 434,543.40, 651,815.10 and 308,572.20 is: 462,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,543.40 : 651,815.10 = 308,572.20 : x
  2. Step 2: Convert to fraction form
    434,543.40/651,815.10 = 308,572.20/x
  3. Step 3: Cross multiply
    434,543.40x = 651,815.10 × 308,572.20
  4. Step 4: Simplify right side
    434,543.40x = 201,132,019,400.22
  5. Step 5: Solve for x
    x = 201,132,019,400.22/434,543.40
  6. Step 6: Final answer
    x = 462,858.30

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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.