Home / 989,173.10-1,482,984.52-390,582.31

Finding the Fourth Proportional to 989,173.10, 1,482,984.52 and 390,582.31

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Solution

The fourth proportional to 989,173.10, 1,482,984.52 and 390,582.31 is: 585,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,173.10 : 1,482,984.52 = 390,582.31 : x
  2. Step 2: Convert to fraction form
    989,173.10/1,482,984.52 = 390,582.31/x
  3. Step 3: Cross multiply
    989,173.10x = 1,482,984.52 × 390,582.31
  4. Step 4: Simplify right side
    989,173.10x = 579,227,519,515.84
  5. Step 5: Solve for x
    x = 579,227,519,515.84/989,173.10
  6. Step 6: Final answer
    x = 585,567.40

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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.