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Finding the Fourth Proportional to 549,661.84, 758,555.10 and 307,946.40

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Solution

The fourth proportional to 549,661.84, 758,555.10 and 307,946.40 is: 424,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,661.84 : 758,555.10 = 307,946.40 : x
  2. Step 2: Convert to fraction form
    549,661.84/758,555.10 = 307,946.40/x
  3. Step 3: Cross multiply
    549,661.84x = 758,555.10 × 307,946.40
  4. Step 4: Simplify right side
    549,661.84x = 233,594,312,246.64
  5. Step 5: Solve for x
    x = 233,594,312,246.64/549,661.84
  6. Step 6: Final answer
    x = 424,978.22

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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.