Home / 766,698.78-1,058,051.54-422,547.12

Finding the Fourth Proportional to 766,698.78, 1,058,051.54 and 422,547.12

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Solution

The fourth proportional to 766,698.78, 1,058,051.54 and 422,547.12 is: 583,119.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,698.78 : 1,058,051.54 = 422,547.12 : x
  2. Step 2: Convert to fraction form
    766,698.78/1,058,051.54 = 422,547.12/x
  3. Step 3: Cross multiply
    766,698.78x = 1,058,051.54 × 422,547.12
  4. Step 4: Simplify right side
    766,698.78x = 447,076,631,038.57
  5. Step 5: Solve for x
    x = 447,076,631,038.57/766,698.78
  6. Step 6: Final answer
    x = 583,119.01

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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.