Finding the Fourth Proportional to 772,117.80, 1,158,176.70 and 647,701.80
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Solution
The fourth proportional to 772,117.80, 1,158,176.70 and 647,701.80 is: 971,552.70
Step by Step Solution
- Step 1: Write the proportion equation
772,117.80 : 1,158,176.70 = 647,701.80 : x - Step 2: Convert to fraction form
772,117.80/1,158,176.70 = 647,701.80/x - Step 3: Cross multiply
772,117.80x = 1,158,176.70 × 647,701.80 - Step 4: Simplify right side
772,117.80x = 750,153,133,308.06 - Step 5: Solve for x
x = 750,153,133,308.06/772,117.80 - Step 6: Final answer
x = 971,552.70
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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.