Home / 897,345.69-1,346,279.16-290,121.05

Finding the Fourth Proportional to 897,345.69, 1,346,279.16 and 290,121.05

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Solution

The fourth proportional to 897,345.69, 1,346,279.16 and 290,121.05 is: 435,265.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,345.69 : 1,346,279.16 = 290,121.05 : x
  2. Step 2: Convert to fraction form
    897,345.69/1,346,279.16 = 290,121.05/x
  3. Step 3: Cross multiply
    897,345.69x = 1,346,279.16 × 290,121.05
  4. Step 4: Simplify right side
    897,345.69x = 390,583,923,492.32
  5. Step 5: Solve for x
    x = 390,583,923,492.32/897,345.69
  6. Step 6: Final answer
    x = 435,265.84

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.