Home / 917,507.25-1,266,259.23-555,130.91

Finding the Fourth Proportional to 917,507.25, 1,266,259.23 and 555,130.91

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Solution

The fourth proportional to 917,507.25, 1,266,259.23 and 555,130.91 is: 766,140.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,507.25 : 1,266,259.23 = 555,130.91 : x
  2. Step 2: Convert to fraction form
    917,507.25/1,266,259.23 = 555,130.91/x
  3. Step 3: Cross multiply
    917,507.25x = 1,266,259.23 × 555,130.91
  4. Step 4: Simplify right side
    917,507.25x = 702,939,641,811.45
  5. Step 5: Solve for x
    x = 702,939,641,811.45/917,507.25
  6. Step 6: Final answer
    x = 766,140.69

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Double scale
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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.