Home / 909,339.20-1,364,008.56-310,300.32

Finding the Fourth Proportional to 909,339.20, 1,364,008.56 and 310,300.32

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Solution

The fourth proportional to 909,339.20, 1,364,008.56 and 310,300.32 is: 465,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,339.20 : 1,364,008.56 = 310,300.32 : x
  2. Step 2: Convert to fraction form
    909,339.20/1,364,008.56 = 310,300.32/x
  3. Step 3: Cross multiply
    909,339.20x = 1,364,008.56 × 310,300.32
  4. Step 4: Simplify right side
    909,339.20x = 423,252,292,650.74
  5. Step 5: Solve for x
    x = 423,252,292,650.74/909,339.20
  6. Step 6: Final answer
    x = 465,450.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.