Home / 790,412.60-1,090,790.64-480,209.60

Finding the Fourth Proportional to 790,412.60, 1,090,790.64 and 480,209.60

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Solution

The fourth proportional to 790,412.60, 1,090,790.64 and 480,209.60 is: 662,702.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,412.60 : 1,090,790.64 = 480,209.60 : x
  2. Step 2: Convert to fraction form
    790,412.60/1,090,790.64 = 480,209.60/x
  3. Step 3: Cross multiply
    790,412.60x = 1,090,790.64 × 480,209.60
  4. Step 4: Simplify right side
    790,412.60x = 523,808,136,918.14
  5. Step 5: Solve for x
    x = 523,808,136,918.14/790,412.60
  6. Step 6: Final answer
    x = 662,702.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.