Home / 885,715.76-1,328,784.55-286,677.02

Finding the Fourth Proportional to 885,715.76, 1,328,784.55 and 286,677.02

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Solution

The fourth proportional to 885,715.76, 1,328,784.55 and 286,677.02 is: 430,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,715.76 : 1,328,784.55 = 286,677.02 : x
  2. Step 2: Convert to fraction form
    885,715.76/1,328,784.55 = 286,677.02/x
  3. Step 3: Cross multiply
    885,715.76x = 1,328,784.55 × 286,677.02
  4. Step 4: Simplify right side
    885,715.76x = 380,931,997,621.31
  5. Step 5: Solve for x
    x = 380,931,997,621.31/885,715.76
  6. Step 6: Final answer
    x = 430,083.80

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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.