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Finding the Fourth Proportional to 710,592.24, 980,619.74 and 388,302.34

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Solution

The fourth proportional to 710,592.24, 980,619.74 and 388,302.34 is: 535,858.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,592.24 : 980,619.74 = 388,302.34 : x
  2. Step 2: Convert to fraction form
    710,592.24/980,619.74 = 388,302.34/x
  3. Step 3: Cross multiply
    710,592.24x = 980,619.74 × 388,302.34
  4. Step 4: Simplify right side
    710,592.24x = 380,776,939,692.19
  5. Step 5: Solve for x
    x = 380,776,939,692.19/710,592.24
  6. Step 6: Final answer
    x = 535,858.57

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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.