Home / 730,358.70-1,095,538.05-415,430.70

Finding the Fourth Proportional to 730,358.70, 1,095,538.05 and 415,430.70

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Solution

The fourth proportional to 730,358.70, 1,095,538.05 and 415,430.70 is: 623,146.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,358.70 : 1,095,538.05 = 415,430.70 : x
  2. Step 2: Convert to fraction form
    730,358.70/1,095,538.05 = 415,430.70/x
  3. Step 3: Cross multiply
    730,358.70x = 1,095,538.05 × 415,430.70
  4. Step 4: Simplify right side
    730,358.70x = 455,120,138,988.14
  5. Step 5: Solve for x
    x = 455,120,138,988.14/730,358.70
  6. Step 6: Final answer
    x = 623,146.05

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Double scale
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Similar ratio
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1.5x scale

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.