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Finding the Fourth Proportional to 530,444.92, 732,015.48 and 288,730.12

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Solution

The fourth proportional to 530,444.92, 732,015.48 and 288,730.12 is: 398,448.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,444.92 : 732,015.48 = 288,730.12 : x
  2. Step 2: Convert to fraction form
    530,444.92/732,015.48 = 288,730.12/x
  3. Step 3: Cross multiply
    530,444.92x = 732,015.48 × 288,730.12
  4. Step 4: Simplify right side
    530,444.92x = 211,354,917,382.26
  5. Step 5: Solve for x
    x = 211,354,917,382.26/530,444.92
  6. Step 6: Final answer
    x = 398,448.38

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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.