Home / 459,870.10-634,633.05-278,543.50

Finding the Fourth Proportional to 459,870.10, 634,633.05 and 278,543.50

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Solution

The fourth proportional to 459,870.10, 634,633.05 and 278,543.50 is: 384,397.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,870.10 : 634,633.05 = 278,543.50 : x
  2. Step 2: Convert to fraction form
    459,870.10/634,633.05 = 278,543.50/x
  3. Step 3: Cross multiply
    459,870.10x = 634,633.05 × 278,543.50
  4. Step 4: Simplify right side
    459,870.10x = 176,772,910,962.68
  5. Step 5: Solve for x
    x = 176,772,910,962.68/459,870.10
  6. Step 6: Final answer
    x = 384,397.49

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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.