Home / 453,945.21-626,420.40-260,342.91

Finding the Fourth Proportional to 453,945.21, 626,420.40 and 260,342.91

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Solution

The fourth proportional to 453,945.21, 626,420.40 and 260,342.91 is: 359,259.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,945.21 : 626,420.40 = 260,342.91 : x
  2. Step 2: Convert to fraction form
    453,945.21/626,420.40 = 260,342.91/x
  3. Step 3: Cross multiply
    453,945.21x = 626,420.40 × 260,342.91
  4. Step 4: Simplify right side
    453,945.21x = 163,084,109,819.36
  5. Step 5: Solve for x
    x = 163,084,109,819.36/453,945.21
  6. Step 6: Final answer
    x = 359,259.46

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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.