Home / 745,457.77-1,028,775.02-561,366.78

Finding the Fourth Proportional to 745,457.77, 1,028,775.02 and 561,366.78

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Solution

The fourth proportional to 745,457.77, 1,028,775.02 and 561,366.78 is: 774,718.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,457.77 : 1,028,775.02 = 561,366.78 : x
  2. Step 2: Convert to fraction form
    745,457.77/1,028,775.02 = 561,366.78/x
  3. Step 3: Cross multiply
    745,457.77x = 1,028,775.02 × 561,366.78
  4. Step 4: Simplify right side
    745,457.77x = 577,520,120,321.84
  5. Step 5: Solve for x
    x = 577,520,120,321.84/745,457.77
  6. Step 6: Final answer
    x = 774,718.76

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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.