Finding the Fourth Proportional to 660,070.70, 988,356.45 and 520,102.70
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Solution
The fourth proportional to 660,070.70, 988,356.45 and 520,102.70 is: 778,775.45
Step by Step Solution
- Step 1: Write the proportion equation
660,070.70 : 988,356.45 = 520,102.70 : x - Step 2: Convert to fraction form
660,070.70/988,356.45 = 520,102.70/x - Step 3: Cross multiply
660,070.70x = 988,356.45 × 520,102.70 - Step 4: Simplify right side
660,070.70x = 514,046,858,207.42 - Step 5: Solve for x
x = 514,046,858,207.42/660,070.70 - Step 6: Final answer
x = 778,775.45
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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.