Home / 1,280,444.10-1,767,009.21-707,480.19

Finding the Fourth Proportional to 1,280,444.10, 1,767,009.21 and 707,480.19

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Solution

The fourth proportional to 1,280,444.10, 1,767,009.21 and 707,480.19 is: 976,320.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,444.10 : 1,767,009.21 = 707,480.19 : x
  2. Step 2: Convert to fraction form
    1,280,444.10/1,767,009.21 = 707,480.19/x
  3. Step 3: Cross multiply
    1,280,444.10x = 1,767,009.21 × 707,480.19
  4. Step 4: Simplify right side
    1,280,444.10x = 1,250,124,011,622.55
  5. Step 5: Solve for x
    x = 1,250,124,011,622.55/1,280,444.10
  6. Step 6: Final answer
    x = 976,320.65

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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.