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Finding the Fourth Proportional to 710,365.36, 980,303.52 and 408,559.36

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Solution

The fourth proportional to 710,365.36, 980,303.52 and 408,559.36 is: 563,811.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,365.36 : 980,303.52 = 408,559.36 : x
  2. Step 2: Convert to fraction form
    710,365.36/980,303.52 = 408,559.36/x
  3. Step 3: Cross multiply
    710,365.36x = 980,303.52 × 408,559.36
  4. Step 4: Simplify right side
    710,365.36x = 400,512,178,736.95
  5. Step 5: Solve for x
    x = 400,512,178,736.95/710,365.36
  6. Step 6: Final answer
    x = 563,811.53

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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.