Home / 772,445.52-1,065,972.36-450,346.32

Finding the Fourth Proportional to 772,445.52, 1,065,972.36 and 450,346.32

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Solution

The fourth proportional to 772,445.52, 1,065,972.36 and 450,346.32 is: 621,476.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,445.52 : 1,065,972.36 = 450,346.32 : x
  2. Step 2: Convert to fraction form
    772,445.52/1,065,972.36 = 450,346.32/x
  3. Step 3: Cross multiply
    772,445.52x = 1,065,972.36 × 450,346.32
  4. Step 4: Simplify right side
    772,445.52x = 480,056,729,547.72
  5. Step 5: Solve for x
    x = 480,056,729,547.72/772,445.52
  6. Step 6: Final answer
    x = 621,476.49

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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.