Home / 651,325.40-977,862.90-415,712.60

Finding the Fourth Proportional to 651,325.40, 977,862.90 and 415,712.60

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Solution

The fourth proportional to 651,325.40, 977,862.90 and 415,712.60 is: 624,127.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,325.40 : 977,862.90 = 415,712.60 : x
  2. Step 2: Convert to fraction form
    651,325.40/977,862.90 = 415,712.60/x
  3. Step 3: Cross multiply
    651,325.40x = 977,862.90 × 415,712.60
  4. Step 4: Simplify right side
    651,325.40x = 406,509,928,602.54
  5. Step 5: Solve for x
    x = 406,509,928,602.54/651,325.40
  6. Step 6: Final answer
    x = 624,127.25

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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.