Home / 761,020.16-1,050,205.20-438,728.72

Finding the Fourth Proportional to 761,020.16, 1,050,205.20 and 438,728.72

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Solution

The fourth proportional to 761,020.16, 1,050,205.20 and 438,728.72 is: 605,444.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,020.16 : 1,050,205.20 = 438,728.72 : x
  2. Step 2: Convert to fraction form
    761,020.16/1,050,205.20 = 438,728.72/x
  3. Step 3: Cross multiply
    761,020.16x = 1,050,205.20 × 438,728.72
  4. Step 4: Simplify right side
    761,020.16x = 460,755,183,133.34
  5. Step 5: Solve for x
    x = 460,755,183,133.34/761,020.16
  6. Step 6: Final answer
    x = 605,444.12

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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.