Home / 947,445.63-1,307,478.41-517,725.80

Finding the Fourth Proportional to 947,445.63, 1,307,478.41 and 517,725.80

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Solution

The fourth proportional to 947,445.63, 1,307,478.41 and 517,725.80 is: 714,463.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,445.63 : 1,307,478.41 = 517,725.80 : x
  2. Step 2: Convert to fraction form
    947,445.63/1,307,478.41 = 517,725.80/x
  3. Step 3: Cross multiply
    947,445.63x = 1,307,478.41 × 517,725.80
  4. Step 4: Simplify right side
    947,445.63x = 676,915,296,673.96
  5. Step 5: Solve for x
    x = 676,915,296,673.96/947,445.63
  6. Step 6: Final answer
    x = 714,463.47

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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.