Finding the Fourth Proportional to 988,089.12, 1,363,567.68 and 535,380
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Solution
The fourth proportional to 988,089.12, 1,363,567.68 and 535,380 is: 738,826.94
Step by Step Solution
- Step 1: Write the proportion equation
988,089.12 : 1,363,567.68 = 535,380 : x - Step 2: Convert to fraction form
988,089.12/1,363,567.68 = 535,380/x - Step 3: Cross multiply
988,089.12x = 1,363,567.68 × 535,380 - Step 4: Simplify right side
988,089.12x = 730,026,864,518.40 - Step 5: Solve for x
x = 730,026,864,518.40/988,089.12 - Step 6: Final answer
x = 738,826.94
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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.