Home / 745,836.72-1,029,329.01-455,432.28

Finding the Fourth Proportional to 745,836.72, 1,029,329.01 and 455,432.28

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Solution

The fourth proportional to 745,836.72, 1,029,329.01 and 455,432.28 is: 628,541.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,836.72 : 1,029,329.01 = 455,432.28 : x
  2. Step 2: Convert to fraction form
    745,836.72/1,029,329.01 = 455,432.28/x
  3. Step 3: Cross multiply
    745,836.72x = 1,029,329.01 × 455,432.28
  4. Step 4: Simplify right side
    745,836.72x = 468,789,657,894.44
  5. Step 5: Solve for x
    x = 468,789,657,894.44/745,836.72
  6. Step 6: Final answer
    x = 628,541.94

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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.