Home / 648,117.80-972,176.70-611,376.20

Finding the Fourth Proportional to 648,117.80, 972,176.70 and 611,376.20

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Solution

The fourth proportional to 648,117.80, 972,176.70 and 611,376.20 is: 917,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,117.80 : 972,176.70 = 611,376.20 : x
  2. Step 2: Convert to fraction form
    648,117.80/972,176.70 = 611,376.20/x
  3. Step 3: Cross multiply
    648,117.80x = 972,176.70 × 611,376.20
  4. Step 4: Simplify right side
    648,117.80x = 594,365,696,574.54
  5. Step 5: Solve for x
    x = 594,365,696,574.54/648,117.80
  6. Step 6: Final answer
    x = 917,064.30

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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.