Home / 1,155,918.20-1,731,803.70-990,030.20

Finding the Fourth Proportional to 1,155,918.20, 1,731,803.70 and 990,030.20

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Solution

The fourth proportional to 1,155,918.20, 1,731,803.70 and 990,030.20 is: 1,483,269.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,918.20 : 1,731,803.70 = 990,030.20 : x
  2. Step 2: Convert to fraction form
    1,155,918.20/1,731,803.70 = 990,030.20/x
  3. Step 3: Cross multiply
    1,155,918.20x = 1,731,803.70 × 990,030.20
  4. Step 4: Simplify right side
    1,155,918.20x = 1,714,537,963,471.74
  5. Step 5: Solve for x
    x = 1,714,537,963,471.74/1,155,918.20
  6. Step 6: Final answer
    x = 1,483,269.29

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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.