Home / 989,415.03-1,365,397.80-559,685.94

Finding the Fourth Proportional to 989,415.03, 1,365,397.80 and 559,685.94

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Solution

The fourth proportional to 989,415.03, 1,365,397.80 and 559,685.94 is: 772,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,415.03 : 1,365,397.80 = 559,685.94 : x
  2. Step 2: Convert to fraction form
    989,415.03/1,365,397.80 = 559,685.94/x
  3. Step 3: Cross multiply
    989,415.03x = 1,365,397.80 × 559,685.94
  4. Step 4: Simplify right side
    989,415.03x = 764,193,944,339.94
  5. Step 5: Solve for x
    x = 764,193,944,339.94/989,415.03
  6. Step 6: Final answer
    x = 772,369.45

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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.