Home / 989,417.73-1,365,401.52-559,688.63

Finding the Fourth Proportional to 989,417.73, 1,365,401.52 and 559,688.63

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Solution

The fourth proportional to 989,417.73, 1,365,401.52 and 559,688.63 is: 772,373.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,417.73 : 1,365,401.52 = 559,688.63 : x
  2. Step 2: Convert to fraction form
    989,417.73/1,365,401.52 = 559,688.63/x
  3. Step 3: Cross multiply
    989,417.73x = 1,365,401.52 × 559,688.63
  4. Step 4: Simplify right side
    989,417.73x = 764,199,706,128.72
  5. Step 5: Solve for x
    x = 764,199,706,128.72/989,417.73
  6. Step 6: Final answer
    x = 772,373.17

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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.