Home / 743,212.48-1,025,636.16-403,686.40

Finding the Fourth Proportional to 743,212.48, 1,025,636.16 and 403,686.40

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Solution

The fourth proportional to 743,212.48, 1,025,636.16 and 403,686.40 is: 557,088.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,212.48 : 1,025,636.16 = 403,686.40 : x
  2. Step 2: Convert to fraction form
    743,212.48/1,025,636.16 = 403,686.40/x
  3. Step 3: Cross multiply
    743,212.48x = 1,025,636.16 × 403,686.40
  4. Step 4: Simplify right side
    743,212.48x = 414,035,369,140.22
  5. Step 5: Solve for x
    x = 414,035,369,140.22/743,212.48
  6. Step 6: Final answer
    x = 557,088.83

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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.