Home / 740,278.58-1,021,587.70-400,746.84

Finding the Fourth Proportional to 740,278.58, 1,021,587.70 and 400,746.84

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Solution

The fourth proportional to 740,278.58, 1,021,587.70 and 400,746.84 is: 553,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,278.58 : 1,021,587.70 = 400,746.84 : x
  2. Step 2: Convert to fraction form
    740,278.58/1,021,587.70 = 400,746.84/x
  3. Step 3: Cross multiply
    740,278.58x = 1,021,587.70 × 400,746.84
  4. Step 4: Simplify right side
    740,278.58x = 409,398,042,557.87
  5. Step 5: Solve for x
    x = 409,398,042,557.87/740,278.58
  6. Step 6: Final answer
    x = 553,032.40

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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.