Finding the Fourth Proportional to 1,368,909.12, 2,053,206.81 and 358,128.62
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Solution
The fourth proportional to 1,368,909.12, 2,053,206.81 and 358,128.62 is: 537,151.88
Step by Step Solution
- Step 1: Write the proportion equation
1,368,909.12 : 2,053,206.81 = 358,128.62 : x - Step 2: Convert to fraction form
1,368,909.12/2,053,206.81 = 358,128.62/x - Step 3: Cross multiply
1,368,909.12x = 2,053,206.81 × 358,128.62 - Step 4: Simplify right side
1,368,909.12x = 735,312,111,173.87 - Step 5: Solve for x
x = 735,312,111,173.87/1,368,909.12 - Step 6: Final answer
x = 537,151.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.