Home / 747,155.22-1,031,070.66-407,623.50

Finding the Fourth Proportional to 747,155.22, 1,031,070.66 and 407,623.50

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Solution

The fourth proportional to 747,155.22, 1,031,070.66 and 407,623.50 is: 562,518.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,155.22 : 1,031,070.66 = 407,623.50 : x
  2. Step 2: Convert to fraction form
    747,155.22/1,031,070.66 = 407,623.50/x
  3. Step 3: Cross multiply
    747,155.22x = 1,031,070.66 × 407,623.50
  4. Step 4: Simplify right side
    747,155.22x = 420,288,631,176.51
  5. Step 5: Solve for x
    x = 420,288,631,176.51/747,155.22
  6. Step 6: Final answer
    x = 562,518.50

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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.