Home / 712,029.74-982,626.03-389,740.10

Finding the Fourth Proportional to 712,029.74, 982,626.03 and 389,740.10

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Solution

The fourth proportional to 712,029.74, 982,626.03 and 389,740.10 is: 537,855.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,029.74 : 982,626.03 = 389,740.10 : x
  2. Step 2: Convert to fraction form
    712,029.74/982,626.03 = 389,740.10/x
  3. Step 3: Cross multiply
    712,029.74x = 982,626.03 × 389,740.10
  4. Step 4: Simplify right side
    712,029.74x = 382,968,762,281.67
  5. Step 5: Solve for x
    x = 382,968,762,281.67/712,029.74
  6. Step 6: Final answer
    x = 537,855.01

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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.