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Finding the Fourth Proportional to 562,669.88, 776,485.04 and 308,021.67

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Solution

The fourth proportional to 562,669.88, 776,485.04 and 308,021.67 is: 425,070.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,669.88 : 776,485.04 = 308,021.67 : x
  2. Step 2: Convert to fraction form
    562,669.88/776,485.04 = 308,021.67/x
  3. Step 3: Cross multiply
    562,669.88x = 776,485.04 × 308,021.67
  4. Step 4: Simplify right side
    562,669.88x = 239,174,217,210.71
  5. Step 5: Solve for x
    x = 239,174,217,210.71/562,669.88
  6. Step 6: Final answer
    x = 425,070.24

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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.