Finding the Fourth Proportional to 578,701.80, 868,052.70 and 157,977.68
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Solution
The fourth proportional to 578,701.80, 868,052.70 and 157,977.68 is: 236,966.51
Step by Step Solution
- Step 1: Write the proportion equation
578,701.80 : 868,052.70 = 157,977.68 : x - Step 2: Convert to fraction form
578,701.80/868,052.70 = 157,977.68/x - Step 3: Cross multiply
578,701.80x = 868,052.70 × 157,977.68 - Step 4: Simplify right side
578,701.80x = 137,132,947,323.47 - Step 5: Solve for x
x = 137,132,947,323.47/578,701.80 - Step 6: Final answer
x = 236,966.51
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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.