Home / 1,403,780.40-2,106,010.80-406,508.40

Finding the Fourth Proportional to 1,403,780.40, 2,106,010.80 and 406,508.40

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Solution

The fourth proportional to 1,403,780.40, 2,106,010.80 and 406,508.40 is: 609,861.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,780.40 : 2,106,010.80 = 406,508.40 : x
  2. Step 2: Convert to fraction form
    1,403,780.40/2,106,010.80 = 406,508.40/x
  3. Step 3: Cross multiply
    1,403,780.40x = 2,106,010.80 × 406,508.40
  4. Step 4: Simplify right side
    1,403,780.40x = 856,111,080,690.72
  5. Step 5: Solve for x
    x = 856,111,080,690.72/1,403,780.40
  6. Step 6: Final answer
    x = 609,861.12

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1.5x scale

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.