Home / 779,221.40-1,075,315.07-435,062.61

Finding the Fourth Proportional to 779,221.40, 1,075,315.07 and 435,062.61

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Solution

The fourth proportional to 779,221.40, 1,075,315.07 and 435,062.61 is: 600,380.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,221.40 : 1,075,315.07 = 435,062.61 : x
  2. Step 2: Convert to fraction form
    779,221.40/1,075,315.07 = 435,062.61/x
  3. Step 3: Cross multiply
    779,221.40x = 1,075,315.07 × 435,062.61
  4. Step 4: Simplify right side
    779,221.40x = 467,829,376,254.09
  5. Step 5: Solve for x
    x = 467,829,376,254.09/779,221.40
  6. Step 6: Final answer
    x = 600,380.55

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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.