Home / 1,087,058.40-1,500,279-657,341.60

Finding the Fourth Proportional to 1,087,058.40, 1,500,279 and 657,341.60

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Solution

The fourth proportional to 1,087,058.40, 1,500,279 and 657,341.60 is: 907,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,058.40 : 1,500,279 = 657,341.60 : x
  2. Step 2: Convert to fraction form
    1,087,058.40/1,500,279 = 657,341.60/x
  3. Step 3: Cross multiply
    1,087,058.40x = 1,500,279 × 657,341.60
  4. Step 4: Simplify right side
    1,087,058.40x = 986,195,798,306.40
  5. Step 5: Solve for x
    x = 986,195,798,306.40/1,087,058.40
  6. Step 6: Final answer
    x = 907,215.10

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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.