Home / 885,698.40-1,328,547.60-352,945.20

Finding the Fourth Proportional to 885,698.40, 1,328,547.60 and 352,945.20

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Solution

The fourth proportional to 885,698.40, 1,328,547.60 and 352,945.20 is: 529,417.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,698.40 : 1,328,547.60 = 352,945.20 : x
  2. Step 2: Convert to fraction form
    885,698.40/1,328,547.60 = 352,945.20/x
  3. Step 3: Cross multiply
    885,698.40x = 1,328,547.60 × 352,945.20
  4. Step 4: Simplify right side
    885,698.40x = 468,904,498,391.52
  5. Step 5: Solve for x
    x = 468,904,498,391.52/885,698.40
  6. Step 6: Final answer
    x = 529,417.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.