Finding the Fourth Proportional to 1,185,541.45, 1,778,316.84 and 286,981.74
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Solution
The fourth proportional to 1,185,541.45, 1,778,316.84 and 286,981.74 is: 430,473.74
Step by Step Solution
- Step 1: Write the proportion equation
1,185,541.45 : 1,778,316.84 = 286,981.74 : x - Step 2: Convert to fraction form
1,185,541.45/1,778,316.84 = 286,981.74/x - Step 3: Cross multiply
1,185,541.45x = 1,778,316.84 × 286,981.74 - Step 4: Simplify right side
1,185,541.45x = 510,344,461,014.50 - Step 5: Solve for x
x = 510,344,461,014.50/1,185,541.45 - Step 6: Final answer
x = 430,473.74
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1.5x scale
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.