Finding the Fourth Proportional to 2,690,643.67, 3,712,156.75 and 1,724,306.79
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Solution
The fourth proportional to 2,690,643.67, 3,712,156.75 and 1,724,306.79 is: 2,378,946.40
Step by Step Solution
- Step 1: Write the proportion equation
2,690,643.67 : 3,712,156.75 = 1,724,306.79 : x - Step 2: Convert to fraction form
2,690,643.67/3,712,156.75 = 1,724,306.79/x - Step 3: Cross multiply
2,690,643.67x = 3,712,156.75 × 1,724,306.79 - Step 4: Simplify right side
2,690,643.67x = 6,400,897,075,065.20 - Step 5: Solve for x
x = 6,400,897,075,065.20/2,690,643.67 - Step 6: Final answer
x = 2,378,946.40
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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.