Home / 1,098,967.77-1,516,590.68-716,775.21

Finding the Fourth Proportional to 1,098,967.77, 1,516,590.68 and 716,775.21

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Solution

The fourth proportional to 1,098,967.77, 1,516,590.68 and 716,775.21 is: 989,159.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,967.77 : 1,516,590.68 = 716,775.21 : x
  2. Step 2: Convert to fraction form
    1,098,967.77/1,516,590.68 = 716,775.21/x
  3. Step 3: Cross multiply
    1,098,967.77x = 1,516,590.68 × 716,775.21
  4. Step 4: Simplify right side
    1,098,967.77x = 1,087,054,599,557.17
  5. Step 5: Solve for x
    x = 1,087,054,599,557.17/1,098,967.77
  6. Step 6: Final answer
    x = 989,159.67

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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.