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Finding the Fourth Proportional to 459,988.94, 634,784.69 and 256,035.47

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Solution

The fourth proportional to 459,988.94, 634,784.69 and 256,035.47 is: 353,328.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,988.94 : 634,784.69 = 256,035.47 : x
  2. Step 2: Convert to fraction form
    459,988.94/634,784.69 = 256,035.47/x
  3. Step 3: Cross multiply
    459,988.94x = 634,784.69 × 256,035.47
  4. Step 4: Simplify right side
    459,988.94x = 162,527,398,680.01
  5. Step 5: Solve for x
    x = 162,527,398,680.01/459,988.94
  6. Step 6: Final answer
    x = 353,328.93

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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.