Home / 1,145,039.76-1,717,559.64-434,899.80

Finding the Fourth Proportional to 1,145,039.76, 1,717,559.64 and 434,899.80

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Solution

The fourth proportional to 1,145,039.76, 1,717,559.64 and 434,899.80 is: 652,349.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,039.76 : 1,717,559.64 = 434,899.80 : x
  2. Step 2: Convert to fraction form
    1,145,039.76/1,717,559.64 = 434,899.80/x
  3. Step 3: Cross multiply
    1,145,039.76x = 1,717,559.64 × 434,899.80
  4. Step 4: Simplify right side
    1,145,039.76x = 746,966,343,924.07
  5. Step 5: Solve for x
    x = 746,966,343,924.07/1,145,039.76
  6. Step 6: Final answer
    x = 652,349.70

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Double scale
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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.