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Finding the Fourth Proportional to 528,592.67, 729,457.87 and 286,875.24

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Solution

The fourth proportional to 528,592.67, 729,457.87 and 286,875.24 is: 395,887.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,592.67 : 729,457.87 = 286,875.24 : x
  2. Step 2: Convert to fraction form
    528,592.67/729,457.87 = 286,875.24/x
  3. Step 3: Cross multiply
    528,592.67x = 729,457.87 × 286,875.24
  4. Step 4: Simplify right side
    528,592.67x = 209,263,398,611.38
  5. Step 5: Solve for x
    x = 209,263,398,611.38/528,592.67
  6. Step 6: Final answer
    x = 395,887.82

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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.