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Finding the Fourth Proportional to 640,672, 883,035.62 and 586,373.44

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Solution

The fourth proportional to 640,672, 883,035.62 and 586,373.44 is: 808,196.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,672 : 883,035.62 = 586,373.44 : x
  2. Step 2: Convert to fraction form
    640,672/883,035.62 = 586,373.44/x
  3. Step 3: Cross multiply
    640,672x = 883,035.62 × 586,373.44
  4. Step 4: Simplify right side
    640,672x = 517,788,634,141.93
  5. Step 5: Solve for x
    x = 517,788,634,141.93/640,672
  6. Step 6: Final answer
    x = 808,196.13

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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.