Home / 710,538.60-1,066,412.70-290,116.20

Finding the Fourth Proportional to 710,538.60, 1,066,412.70 and 290,116.20

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Solution

The fourth proportional to 710,538.60, 1,066,412.70 and 290,116.20 is: 435,421.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,538.60 : 1,066,412.70 = 290,116.20 : x
  2. Step 2: Convert to fraction form
    710,538.60/1,066,412.70 = 290,116.20/x
  3. Step 3: Cross multiply
    710,538.60x = 1,066,412.70 × 290,116.20
  4. Step 4: Simplify right side
    710,538.60x = 309,383,600,155.74
  5. Step 5: Solve for x
    x = 309,383,600,155.74/710,538.60
  6. Step 6: Final answer
    x = 435,421.24

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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.