Home / 947,740.68-1,307,880.21-539,842.35

Finding the Fourth Proportional to 947,740.68, 1,307,880.21 and 539,842.35

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Solution

The fourth proportional to 947,740.68, 1,307,880.21 and 539,842.35 is: 744,981.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,740.68 : 1,307,880.21 = 539,842.35 : x
  2. Step 2: Convert to fraction form
    947,740.68/1,307,880.21 = 539,842.35/x
  3. Step 3: Cross multiply
    947,740.68x = 1,307,880.21 × 539,842.35
  4. Step 4: Simplify right side
    947,740.68x = 706,049,126,084.89
  5. Step 5: Solve for x
    x = 706,049,126,084.89/947,740.68
  6. Step 6: Final answer
    x = 744,981.34

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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.