Finding the Fourth Proportional to 1,210,011.40, 1,671,312.18 and 887,210.20
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Solution
The fourth proportional to 1,210,011.40, 1,671,312.18 and 887,210.20 is: 1,225,447.31
Step by Step Solution
- Step 1: Write the proportion equation
1,210,011.40 : 1,671,312.18 = 887,210.20 : x - Step 2: Convert to fraction form
1,210,011.40/1,671,312.18 = 887,210.20/x - Step 3: Cross multiply
1,210,011.40x = 1,671,312.18 × 887,210.20 - Step 4: Simplify right side
1,210,011.40x = 1,482,805,213,480.24 - Step 5: Solve for x
x = 1,482,805,213,480.24/1,210,011.40 - Step 6: Final answer
x = 1,225,447.31
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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.