Home / 671,381.15-1,007,071.71-642,225.69

Finding the Fourth Proportional to 671,381.15, 1,007,071.71 and 642,225.69

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Solution

The fourth proportional to 671,381.15, 1,007,071.71 and 642,225.69 is: 963,338.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,381.15 : 1,007,071.71 = 642,225.69 : x
  2. Step 2: Convert to fraction form
    671,381.15/1,007,071.71 = 642,225.69/x
  3. Step 3: Cross multiply
    671,381.15x = 1,007,071.71 × 642,225.69
  4. Step 4: Simplify right side
    671,381.15x = 646,767,323,834.23
  5. Step 5: Solve for x
    x = 646,767,323,834.23/671,381.15
  6. Step 6: Final answer
    x = 963,338.53

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.