Home / 1,020,807.20-1,531,537.20-310,970.40

Finding the Fourth Proportional to 1,020,807.20, 1,531,537.20 and 310,970.40

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Solution

The fourth proportional to 1,020,807.20, 1,531,537.20 and 310,970.40 is: 466,555.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,807.20 : 1,531,537.20 = 310,970.40 : x
  2. Step 2: Convert to fraction form
    1,020,807.20/1,531,537.20 = 310,970.40/x
  3. Step 3: Cross multiply
    1,020,807.20x = 1,531,537.20 × 310,970.40
  4. Step 4: Simplify right side
    1,020,807.20x = 476,262,735,698.88
  5. Step 5: Solve for x
    x = 476,262,735,698.88/1,020,807.20
  6. Step 6: Final answer
    x = 466,555.03

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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.