Home / 909,480.29-1,255,028.59-522,358.74

Finding the Fourth Proportional to 909,480.29, 1,255,028.59 and 522,358.74

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Solution

The fourth proportional to 909,480.29, 1,255,028.59 and 522,358.74 is: 720,823.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,480.29 : 1,255,028.59 = 522,358.74 : x
  2. Step 2: Convert to fraction form
    909,480.29/1,255,028.59 = 522,358.74/x
  3. Step 3: Cross multiply
    909,480.29x = 1,255,028.59 × 522,358.74
  4. Step 4: Simplify right side
    909,480.29x = 655,575,152,936.38
  5. Step 5: Solve for x
    x = 655,575,152,936.38/909,480.29
  6. Step 6: Final answer
    x = 720,823.93

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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.