Home / 692,001.40-1,038,002.10-621,142.60

Finding the Fourth Proportional to 692,001.40, 1,038,002.10 and 621,142.60

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Solution

The fourth proportional to 692,001.40, 1,038,002.10 and 621,142.60 is: 931,713.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,001.40 : 1,038,002.10 = 621,142.60 : x
  2. Step 2: Convert to fraction form
    692,001.40/1,038,002.10 = 621,142.60/x
  3. Step 3: Cross multiply
    692,001.40x = 1,038,002.10 × 621,142.60
  4. Step 4: Simplify right side
    692,001.40x = 644,747,323,199.46
  5. Step 5: Solve for x
    x = 644,747,323,199.46/692,001.40
  6. Step 6: Final answer
    x = 931,713.90

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1.5x scale

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.