Home / 909,385.79-1,254,951.83-522,226.51

Finding the Fourth Proportional to 909,385.79, 1,254,951.83 and 522,226.51

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Solution

The fourth proportional to 909,385.79, 1,254,951.83 and 522,226.51 is: 720,672.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,385.79 : 1,254,951.83 = 522,226.51 : x
  2. Step 2: Convert to fraction form
    909,385.79/1,254,951.83 = 522,226.51/x
  3. Step 3: Cross multiply
    909,385.79x = 1,254,951.83 × 522,226.51
  4. Step 4: Simplify right side
    909,385.79x = 655,369,112,567.20
  5. Step 5: Solve for x
    x = 655,369,112,567.20/909,385.79
  6. Step 6: Final answer
    x = 720,672.26

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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.