Home / 646,890.61-892,718.81-371,294.05

Finding the Fourth Proportional to 646,890.61, 892,718.81 and 371,294.05

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Solution

The fourth proportional to 646,890.61, 892,718.81 and 371,294.05 is: 512,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,890.61 : 892,718.81 = 371,294.05 : x
  2. Step 2: Convert to fraction form
    646,890.61/892,718.81 = 371,294.05/x
  3. Step 3: Cross multiply
    646,890.61x = 892,718.81 × 371,294.05
  4. Step 4: Simplify right side
    646,890.61x = 331,461,182,476.08
  5. Step 5: Solve for x
    x = 331,461,182,476.08/646,890.61
  6. Step 6: Final answer
    x = 512,391.40

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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.