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Finding the Fourth Proportional to 560,071.97, 772,957.64 and 345,206.51

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Solution

The fourth proportional to 560,071.97, 772,957.64 and 345,206.51 is: 476,420.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,071.97 : 772,957.64 = 345,206.51 : x
  2. Step 2: Convert to fraction form
    560,071.97/772,957.64 = 345,206.51/x
  3. Step 3: Cross multiply
    560,071.97x = 772,957.64 × 345,206.51
  4. Step 4: Simplify right side
    560,071.97x = 266,830,007,237.27
  5. Step 5: Solve for x
    x = 266,830,007,237.27/560,071.97
  6. Step 6: Final answer
    x = 476,420.93

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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.