Home / 947,420.32-1,307,443.44-517,700.44

Finding the Fourth Proportional to 947,420.32, 1,307,443.44 and 517,700.44

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Solution

The fourth proportional to 947,420.32, 1,307,443.44 and 517,700.44 is: 714,428.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,420.32 : 1,307,443.44 = 517,700.44 : x
  2. Step 2: Convert to fraction form
    947,420.32/1,307,443.44 = 517,700.44/x
  3. Step 3: Cross multiply
    947,420.32x = 1,307,443.44 × 517,700.44
  4. Step 4: Simplify right side
    947,420.32x = 676,864,044,163.11
  5. Step 5: Solve for x
    x = 676,864,044,163.11/947,420.32
  6. Step 6: Final answer
    x = 714,428.46

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Double scale
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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.