Finding the Fourth Proportional to 787,970.95, 1,086,988.65 and 497,478.06
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Solution
The fourth proportional to 787,970.95, 1,086,988.65 and 497,478.06 is: 686,260.08
Step by Step Solution
- Step 1: Write the proportion equation
787,970.95 : 1,086,988.65 = 497,478.06 : x - Step 2: Convert to fraction form
787,970.95/1,086,988.65 = 497,478.06/x - Step 3: Cross multiply
787,970.95x = 1,086,988.65 × 497,478.06 - Step 4: Simplify right side
787,970.95x = 540,753,010,233.10 - Step 5: Solve for x
x = 540,753,010,233.10/787,970.95 - Step 6: Final answer
x = 686,260.08
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.