Home / 761,474.51-1,050,701.60-434,638.30

Finding the Fourth Proportional to 761,474.51, 1,050,701.60 and 434,638.30

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Solution

The fourth proportional to 761,474.51, 1,050,701.60 and 434,638.30 is: 599,724.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,474.51 : 1,050,701.60 = 434,638.30 : x
  2. Step 2: Convert to fraction form
    761,474.51/1,050,701.60 = 434,638.30/x
  3. Step 3: Cross multiply
    761,474.51x = 1,050,701.60 × 434,638.30
  4. Step 4: Simplify right side
    761,474.51x = 456,675,157,231.28
  5. Step 5: Solve for x
    x = 456,675,157,231.28/761,474.51
  6. Step 6: Final answer
    x = 599,724.81

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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.