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Finding the Fourth Proportional to 710,362.56, 980,314.77 and 388,093.56

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Solution

The fourth proportional to 710,362.56, 980,314.77 and 388,093.56 is: 535,577.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,362.56 : 980,314.77 = 388,093.56 : x
  2. Step 2: Convert to fraction form
    710,362.56/980,314.77 = 388,093.56/x
  3. Step 3: Cross multiply
    710,362.56x = 980,314.77 × 388,093.56
  4. Step 4: Simplify right side
    710,362.56x = 380,453,849,009.88
  5. Step 5: Solve for x
    x = 380,453,849,009.88/710,362.56
  6. Step 6: Final answer
    x = 535,577.00

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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.