Finding the Fourth Proportional to 1,069,447.25, 1,475,285.20 and 725,166.68
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Solution
The fourth proportional to 1,069,447.25, 1,475,285.20 and 725,166.68 is: 1,000,355.71
Step by Step Solution
- Step 1: Write the proportion equation
1,069,447.25 : 1,475,285.20 = 725,166.68 : x - Step 2: Convert to fraction form
1,069,447.25/1,475,285.20 = 725,166.68/x - Step 3: Cross multiply
1,069,447.25x = 1,475,285.20 × 725,166.68 - Step 4: Simplify right side
1,069,447.25x = 1,069,827,661,347.79 - Step 5: Solve for x
x = 1,069,827,661,347.79/1,069,447.25 - Step 6: Final answer
x = 1,000,355.71
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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.