Finding the Fourth Proportional to 1,221,981.39, 1,832,430.80 and 653,224.70
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Solution
The fourth proportional to 1,221,981.39, 1,832,430.80 and 653,224.70 is: 979,547.70
Step by Step Solution
- Step 1: Write the proportion equation
1,221,981.39 : 1,832,430.80 = 653,224.70 : x - Step 2: Convert to fraction form
1,221,981.39/1,832,430.80 = 653,224.70/x - Step 3: Cross multiply
1,221,981.39x = 1,832,430.80 × 653,224.70 - Step 4: Simplify right side
1,221,981.39x = 1,196,989,065,814.90 - Step 5: Solve for x
x = 1,196,989,065,814.90/1,221,981.39 - Step 6: Final answer
x = 979,547.70
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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.