Home / 920,966.81-1,270,931.00-513,044.54

Finding the Fourth Proportional to 920,966.81, 1,270,931.00 and 513,044.54

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Solution

The fourth proportional to 920,966.81, 1,270,931.00 and 513,044.54 is: 707,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,966.81 : 1,270,931.00 = 513,044.54 : x
  2. Step 2: Convert to fraction form
    920,966.81/1,270,931.00 = 513,044.54/x
  3. Step 3: Cross multiply
    920,966.81x = 1,270,931.00 × 513,044.54
  4. Step 4: Simplify right side
    920,966.81x = 652,044,201,346.86
  5. Step 5: Solve for x
    x = 652,044,201,346.86/920,966.81
  6. Step 6: Final answer
    x = 707,999.68

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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.