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Finding the Fourth Proportional to 676,649.76, 933,807.04 and 374,824.32

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Solution

The fourth proportional to 676,649.76, 933,807.04 and 374,824.32 is: 517,274.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,649.76 : 933,807.04 = 374,824.32 : x
  2. Step 2: Convert to fraction form
    676,649.76/933,807.04 = 374,824.32/x
  3. Step 3: Cross multiply
    676,649.76x = 933,807.04 × 374,824.32
  4. Step 4: Simplify right side
    676,649.76x = 350,013,588,779.21
  5. Step 5: Solve for x
    x = 350,013,588,779.21/676,649.76
  6. Step 6: Final answer
    x = 517,274.39

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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.