Home / 651,205.20-975,495.60-438,628.80

Finding the Fourth Proportional to 651,205.20, 975,495.60 and 438,628.80

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Solution

The fourth proportional to 651,205.20, 975,495.60 and 438,628.80 is: 657,059.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,205.20 : 975,495.60 = 438,628.80 : x
  2. Step 2: Convert to fraction form
    651,205.20/975,495.60 = 438,628.80/x
  3. Step 3: Cross multiply
    651,205.20x = 975,495.60 × 438,628.80
  4. Step 4: Simplify right side
    651,205.20x = 427,880,464,433.28
  5. Step 5: Solve for x
    x = 427,880,464,433.28/651,205.20
  6. Step 6: Final answer
    x = 657,059.35

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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.