Home / 989,458.39-1,365,455.20-536,749.39

Finding the Fourth Proportional to 989,458.39, 1,365,455.20 and 536,749.39

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Solution

The fourth proportional to 989,458.39, 1,365,455.20 and 536,749.39 is: 740,715.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,458.39 : 1,365,455.20 = 536,749.39 : x
  2. Step 2: Convert to fraction form
    989,458.39/1,365,455.20 = 536,749.39/x
  3. Step 3: Cross multiply
    989,458.39x = 1,365,455.20 × 536,749.39
  4. Step 4: Simplify right side
    989,458.39x = 732,907,237,853.39
  5. Step 5: Solve for x
    x = 732,907,237,853.39/989,458.39
  6. Step 6: Final answer
    x = 740,715.58

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Double scale
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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.