Finding the Fourth Proportional to 979,709.76, 1,470,108.96 and 530,424
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Solution
The fourth proportional to 979,709.76, 1,470,108.96 and 530,424 is: 795,930.70
Step by Step Solution
- Step 1: Write the proportion equation
979,709.76 : 1,470,108.96 = 530,424 : x - Step 2: Convert to fraction form
979,709.76/1,470,108.96 = 530,424/x - Step 3: Cross multiply
979,709.76x = 1,470,108.96 × 530,424 - Step 4: Simplify right side
979,709.76x = 779,781,074,999.04 - Step 5: Solve for x
x = 779,781,074,999.04/979,709.76 - Step 6: Final answer
x = 795,930.70
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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.