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Finding the Fourth Proportional to 545,130, 817,163.73 and 260,746.29

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Solution

The fourth proportional to 545,130, 817,163.73 and 260,746.29 is: 390,865.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,130 : 817,163.73 = 260,746.29 : x
  2. Step 2: Convert to fraction form
    545,130/817,163.73 = 260,746.29/x
  3. Step 3: Cross multiply
    545,130x = 817,163.73 × 260,746.29
  4. Step 4: Simplify right side
    545,130x = 213,072,410,920.06
  5. Step 5: Solve for x
    x = 213,072,410,920.06/545,130
  6. Step 6: Final answer
    x = 390,865.32

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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.