Home / 1,330,984.80-1,996,477.20-384,386.40

Finding the Fourth Proportional to 1,330,984.80, 1,996,477.20 and 384,386.40

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Solution

The fourth proportional to 1,330,984.80, 1,996,477.20 and 384,386.40 is: 576,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,984.80 : 1,996,477.20 = 384,386.40 : x
  2. Step 2: Convert to fraction form
    1,330,984.80/1,996,477.20 = 384,386.40/x
  3. Step 3: Cross multiply
    1,330,984.80x = 1,996,477.20 × 384,386.40
  4. Step 4: Simplify right side
    1,330,984.80x = 767,418,683,590.08
  5. Step 5: Solve for x
    x = 767,418,683,590.08/1,330,984.80
  6. Step 6: Final answer
    x = 576,579.60

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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.