Home / 947,706.48-1,307,828.16-517,978.80

Finding the Fourth Proportional to 947,706.48, 1,307,828.16 and 517,978.80

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Solution

The fourth proportional to 947,706.48, 1,307,828.16 and 517,978.80 is: 714,807.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,706.48 : 1,307,828.16 = 517,978.80 : x
  2. Step 2: Convert to fraction form
    947,706.48/1,307,828.16 = 517,978.80/x
  3. Step 3: Cross multiply
    947,706.48x = 1,307,828.16 × 517,978.80
  4. Step 4: Simplify right side
    947,706.48x = 677,427,260,923.01
  5. Step 5: Solve for x
    x = 677,427,260,923.01/947,706.48
  6. Step 6: Final answer
    x = 714,807.04

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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.