Finding the Fourth Proportional to 1,130,978.75, 1,560,750.68 and 647,703.79
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Solution
The fourth proportional to 1,130,978.75, 1,560,750.68 and 647,703.79 is: 893,831.23
Step by Step Solution
- Step 1: Write the proportion equation
1,130,978.75 : 1,560,750.68 = 647,703.79 : x - Step 2: Convert to fraction form
1,130,978.75/1,560,750.68 = 647,703.79/x - Step 3: Cross multiply
1,130,978.75x = 1,560,750.68 × 647,703.79 - Step 4: Simplify right side
1,130,978.75x = 1,010,904,130,681.08 - Step 5: Solve for x
x = 1,010,904,130,681.08/1,130,978.75 - Step 6: Final answer
x = 893,831.23
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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.