Home / 1,020,225.40-1,530,395.70-310,276.60

Finding the Fourth Proportional to 1,020,225.40, 1,530,395.70 and 310,276.60

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Solution

The fourth proportional to 1,020,225.40, 1,530,395.70 and 310,276.60 is: 465,432.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,225.40 : 1,530,395.70 = 310,276.60 : x
  2. Step 2: Convert to fraction form
    1,020,225.40/1,530,395.70 = 310,276.60/x
  3. Step 3: Cross multiply
    1,020,225.40x = 1,530,395.70 × 310,276.60
  4. Step 4: Simplify right side
    1,020,225.40x = 474,845,974,450.62
  5. Step 5: Solve for x
    x = 474,845,974,450.62/1,020,225.40
  6. Step 6: Final answer
    x = 465,432.42

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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.