Finding the Fourth Proportional to 1,130,712.19, 1,560,746.49 and 723,909.70
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Solution
The fourth proportional to 1,130,712.19, 1,560,746.49 and 723,909.70 is: 999,228.22
Step by Step Solution
- Step 1: Write the proportion equation
1,130,712.19 : 1,560,746.49 = 723,909.70 : x - Step 2: Convert to fraction form
1,130,712.19/1,560,746.49 = 723,909.70/x - Step 3: Cross multiply
1,130,712.19x = 1,560,746.49 × 723,909.70 - Step 4: Simplify right side
1,130,712.19x = 1,129,839,523,351.95 - Step 5: Solve for x
x = 1,129,839,523,351.95/1,130,712.19 - Step 6: Final answer
x = 999,228.22
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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.