Finding the Fourth Proportional to 1,207,490.84, 1,666,374.86 and 663,616.74
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Solution
The fourth proportional to 1,207,490.84, 1,666,374.86 and 663,616.74 is: 915,811.71
Step by Step Solution
- Step 1: Write the proportion equation
1,207,490.84 : 1,666,374.86 = 663,616.74 : x - Step 2: Convert to fraction form
1,207,490.84/1,666,374.86 = 663,616.74/x - Step 3: Cross multiply
1,207,490.84x = 1,666,374.86 × 663,616.74 - Step 4: Simplify right side
1,207,490.84x = 1,105,834,248,893.07 - Step 5: Solve for x
x = 1,105,834,248,893.07/1,207,490.84 - Step 6: Final answer
x = 915,811.71
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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.