Home / 885,830.71-1,328,418.01-286,636.45

Finding the Fourth Proportional to 885,830.71, 1,328,418.01 and 286,636.45

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Solution

The fourth proportional to 885,830.71, 1,328,418.01 and 286,636.45 is: 429,848.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,830.71 : 1,328,418.01 = 286,636.45 : x
  2. Step 2: Convert to fraction form
    885,830.71/1,328,418.01 = 286,636.45/x
  3. Step 3: Cross multiply
    885,830.71x = 1,328,418.01 × 286,636.45
  4. Step 4: Simplify right side
    885,830.71x = 380,773,022,502.47
  5. Step 5: Solve for x
    x = 380,773,022,502.47/885,830.71
  6. Step 6: Final answer
    x = 429,848.52

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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.