Finding the Fourth Proportional to 1,112,117.67, 1,668,306.12 and 402,479.91
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Solution
The fourth proportional to 1,112,117.67, 1,668,306.12 and 402,479.91 is: 603,766.77
Step by Step Solution
- Step 1: Write the proportion equation
1,112,117.67 : 1,668,306.12 = 402,479.91 : x - Step 2: Convert to fraction form
1,112,117.67/1,668,306.12 = 402,479.91/x - Step 3: Cross multiply
1,112,117.67x = 1,668,306.12 × 402,479.91 - Step 4: Simplify right side
1,112,117.67x = 671,459,697,030.05 - Step 5: Solve for x
x = 671,459,697,030.05/1,112,117.67 - Step 6: Final answer
x = 603,766.77
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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.